diff --git a/src/debug_lldb.cc b/src/debug_lldb.cc
index 2469897..f7340d9 100644
--- a/src/debug_lldb.cc
+++ b/src/debug_lldb.cc
@@ -250,13 +250,13 @@ void Debug::LLDB::start(const std::string &command, const boost::filesystem::pat
 }
 
 void Debug::LLDB::continue_debug() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped)
     process->Continue();
 }
 
 void Debug::LLDB::stop() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateRunning) {
     auto error = process->Stop();
     if(error.Fail())
@@ -265,7 +265,7 @@ void Debug::LLDB::stop() {
 }
 
 void Debug::LLDB::kill() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(process) {
     auto error = process->Kill();
     if(error.Fail())
@@ -274,21 +274,21 @@ void Debug::LLDB::kill() {
 }
 
 void Debug::LLDB::step_over() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped) {
     process->GetSelectedThread().StepOver();
   }
 }
 
 void Debug::LLDB::step_into() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped) {
     process->GetSelectedThread().StepInto();
   }
 }
 
 void Debug::LLDB::step_out() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped) {
     process->GetSelectedThread().StepOut();
   }
@@ -296,7 +296,7 @@ void Debug::LLDB::step_out() {
 
 std::pair<std::string, std::string> Debug::LLDB::run_command(const std::string &command) {
   std::pair<std::string, std::string> command_return;
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped || state == lldb::StateType::eStateRunning) {
     lldb::SBCommandReturnObject command_return_object;
     debugger->GetCommandInterpreter().HandleCommand(command.c_str(), command_return_object, true);
@@ -312,7 +312,7 @@ std::pair<std::string, std::string> Debug::LLDB::run_command(const std::string &
 
 std::vector<Debug::LLDB::Frame> Debug::LLDB::get_backtrace() {
   std::vector<Frame> backtrace;
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped) {
     auto thread = process->GetSelectedThread();
     for(uint32_t c_f = 0; c_f < thread.GetNumFrames(); c_f++) {
@@ -348,7 +348,7 @@ std::vector<Debug::LLDB::Frame> Debug::LLDB::get_backtrace() {
 
 std::vector<Debug::LLDB::Variable> Debug::LLDB::get_variables() {
   std::vector<Debug::LLDB::Variable> variables;
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped) {
     for(uint32_t c_t = 0; c_t < process->GetNumThreads(); c_t++) {
       auto thread = process->GetThreadAtIndex(c_t);
@@ -402,7 +402,7 @@ std::vector<Debug::LLDB::Variable> Debug::LLDB::get_variables() {
 }
 
 void Debug::LLDB::select_frame(uint32_t frame_index, uint32_t thread_index_id) {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped) {
     if(thread_index_id != 0)
       process->SetSelectedThreadByIndexID(thread_index_id);
@@ -419,7 +419,7 @@ void Debug::LLDB::cancel() {
 
 std::string Debug::LLDB::get_value(const std::string &variable, const boost::filesystem::path &file_path, unsigned int line_nr, unsigned int line_index) {
   std::string variable_value;
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped) {
     auto frame = process->GetSelectedThread().GetSelectedFrame();
 
@@ -462,7 +462,7 @@ std::string Debug::LLDB::get_value(const std::string &variable, const boost::fil
 
 std::string Debug::LLDB::get_return_value(const boost::filesystem::path &file_path, unsigned int line_nr, unsigned int line_index) {
   std::string return_value;
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateStopped) {
     auto thread = process->GetSelectedThread();
     auto thread_return_value = thread.GetStopReturnValue();
@@ -484,22 +484,22 @@ std::string Debug::LLDB::get_return_value(const boost::filesystem::path &file_pa
 }
 
 bool Debug::LLDB::is_invalid() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   return state == lldb::StateType::eStateInvalid;
 }
 
 bool Debug::LLDB::is_stopped() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   return state == lldb::StateType::eStateStopped;
 }
 
 bool Debug::LLDB::is_running() {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   return state == lldb::StateType::eStateRunning;
 }
 
 void Debug::LLDB::add_breakpoint(const boost::filesystem::path &file_path, int line_nr) {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::eStateStopped || state == lldb::eStateRunning) {
     if(!(process->GetTarget().BreakpointCreateByLocation(file_path.string().c_str(), line_nr)).IsValid())
       Terminal::get().async_print("Error (debug): Could not create breakpoint at: " + file_path.string() + ":" + std::to_string(line_nr) + '\n', true);
@@ -507,7 +507,7 @@ void Debug::LLDB::add_breakpoint(const boost::filesystem::path &file_path, int l
 }
 
 void Debug::LLDB::remove_breakpoint(const boost::filesystem::path &file_path, int line_nr, int line_count) {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::eStateStopped || state == lldb::eStateRunning) {
     auto target = process->GetTarget();
     for(int line_nr_try = line_nr; line_nr_try < line_count; line_nr_try++) {
@@ -532,7 +532,7 @@ void Debug::LLDB::remove_breakpoint(const boost::filesystem::path &file_path, in
 }
 
 void Debug::LLDB::write(const std::string &buffer) {
-  std::unique_lock<std::mutex> lock(mutex);
+  std::lock_guard<std::mutex> lock(mutex);
   if(state == lldb::StateType::eStateRunning) {
     process->PutSTDIN(buffer.c_str(), buffer.size());
   }
diff --git a/src/dispatcher.cc b/src/dispatcher.cc
index 17f99c0..f4f78f6 100644
--- a/src/dispatcher.cc
+++ b/src/dispatcher.cc
@@ -5,7 +5,7 @@ Dispatcher::Dispatcher() {
   connection = dispatcher.connect([this] {
     std::vector<std::list<std::function<void()>>::iterator> its;
     {
-      std::unique_lock<std::mutex> lock(functions_mutex);
+      std::lock_guard<std::mutex> lock(functions_mutex);
       if(functions.empty())
         return;
       its.reserve(functions.size());
@@ -15,7 +15,7 @@ Dispatcher::Dispatcher() {
     for(auto &it : its)
       (*it)();
     {
-      std::unique_lock<std::mutex> lock(functions_mutex);
+      std::lock_guard<std::mutex> lock(functions_mutex);
       for(auto &it : its)
         functions.erase(it);
     }
diff --git a/src/dispatcher.h b/src/dispatcher.h
index cdcc7cd..7f735f4 100644
--- a/src/dispatcher.h
+++ b/src/dispatcher.h
@@ -18,7 +18,7 @@ public:
   template <typename T>
   void post(T &&function) {
     {
-      std::unique_lock<std::mutex> lock(functions_mutex);
+      std::lock_guard<std::mutex> lock(functions_mutex);
       functions.emplace_back(std::forward<T>(function));
     }
     dispatcher();
diff --git a/src/git.cc b/src/git.cc
index 9da2d7b..b6fe6c9 100644
--- a/src/git.cc
+++ b/src/git.cc
@@ -182,7 +182,7 @@ int Git::Repository::status_callback(const char *path, unsigned int status_flags
 
 Git::Repository::Status Git::Repository::get_status() {
   {
-    std::unique_lock<std::mutex> lock(saved_status_mutex);
+    std::lock_guard<std::mutex> lock(saved_status_mutex);
     if(has_saved_status)
       return saved_status;
   }
@@ -217,7 +217,7 @@ Git::Repository::Status Git::Repository::get_status() {
 }
 
 void Git::Repository::clear_saved_status() {
-  std::unique_lock<std::mutex> lock(saved_status_mutex);
+  std::lock_guard<std::mutex> lock(saved_status_mutex);
   saved_status.added.clear();
   saved_status.modified.clear();
   has_saved_status = false;
diff --git a/src/project.cc b/src/project.cc
index 2e40e61..f50eb89 100644
--- a/src/project.cc
+++ b/src/project.cc
@@ -409,7 +409,7 @@ void Project::LLDB::debug_start() {
           boost::filesystem::path stop_path;
           unsigned stop_line = 0, stop_column = 0;
 
-          std::unique_lock<std::mutex> lock(Debug::LLDB::get().mutex);
+          std::lock_guard<std::mutex> lock(Debug::LLDB::get().mutex);
           auto process = lldb::SBProcess::GetProcessFromEvent(event);
           auto state = lldb::SBProcess::GetStateFromEvent(event);
           lldb::SBStream stream;
diff --git a/src/source_clang.cc b/src/source_clang.cc
index 1e4668f..3ddf709 100644
--- a/src/source_clang.cc
+++ b/src/source_clang.cc
@@ -550,7 +550,7 @@ Source::ClangViewAutocomplete::ClangViewAutocomplete(const boost::filesystem::pa
     std::smatch sm;
     if(std::regex_match(line, sm, regex)) {
       {
-        std::unique_lock<std::mutex> lock(autocomplete.prefix_mutex);
+        std::lock_guard<std::mutex> lock(autocomplete.prefix_mutex);
         autocomplete.prefix = sm.length(2) ? sm[3].str() : sm.length(4) ? sm[5].str() : sm[6].str();
         if(!sm.length(2) && !sm.length(4))
           enable_snippets = true;
@@ -559,7 +559,7 @@ Source::ClangViewAutocomplete::ClangViewAutocomplete(const boost::filesystem::pa
     }
     else if(is_possible_argument()) {
       show_parameters = true;
-      std::unique_lock<std::mutex> lock(autocomplete.prefix_mutex);
+      std::lock_guard<std::mutex> lock(autocomplete.prefix_mutex);
       autocomplete.prefix = "";
       return true;
     }
@@ -572,7 +572,7 @@ Source::ClangViewAutocomplete::ClangViewAutocomplete(const boost::filesystem::pa
         iter.forward_char();
 
       {
-        std::unique_lock<std::mutex> lock(autocomplete.prefix_mutex);
+        std::lock_guard<std::mutex> lock(autocomplete.prefix_mutex);
         autocomplete.prefix = get_buffer()->get_text(iter, end_iter);
       }
       auto prev1 = iter;
diff --git a/src/source_diff.cc b/src/source_diff.cc
index d3c2594..ee7cc6f 100644
--- a/src/source_diff.cc
+++ b/src/source_diff.cc
@@ -149,7 +149,7 @@ void Source::DiffView::configure() {
       delayed_monitor_changed_connection = Glib::signal_timeout().connect([this]() {
         monitor_changed = true;
         parse_state = ParseState::STARTING;
-        std::unique_lock<std::mutex> lock(parse_mutex);
+        std::lock_guard<std::mutex> lock(parse_mutex);
         diff = nullptr;
         return false;
       }, 500);
@@ -298,7 +298,7 @@ std::string Source::DiffView::git_get_diff_details() {
     auto iter = get_buffer()->get_iter_at_line(line_nr);
     if(iter.has_tag(renderer->tag_removed_above))
       --line_nr;
-    std::unique_lock<std::mutex> lock(parse_mutex);
+    std::lock_guard<std::mutex> lock(parse_mutex);
     parse_buffer = get_buffer()->get_text();
     details = diff->get_details(parse_buffer.raw(), line_nr);
   }
@@ -312,7 +312,7 @@ std::unique_ptr<Git::Repository::Diff> Source::DiffView::get_diff() {
   auto work_path = filesystem::get_normal_path(repository->get_work_path());
   boost::filesystem::path relative_path;
   {
-    std::unique_lock<std::mutex> lock(canonical_file_path_mutex);
+    std::lock_guard<std::mutex> lock(canonical_file_path_mutex);
     if(!filesystem::file_in_path(canonical_file_path, work_path))
       throw std::runtime_error("not a relative path");
     relative_path = filesystem::get_relative_path(canonical_file_path, work_path);
diff --git a/src/source_generic.h b/src/source_generic.h
index 7b1101a..63caf4e 100644
--- a/src/source_generic.h
+++ b/src/source_generic.h
@@ -19,6 +19,7 @@ namespace Source {
     std::pair<Gtk::TextIter, Gtk::TextIter> get_word(Gtk::TextIter iter);
     std::vector<std::pair<Gtk::TextIter, Gtk::TextIter>> get_words(const Gtk::TextIter &start, const Gtk::TextIter &end);
 
+    std::mutex buffer_words_mutex;
     std::map<std::string, size_t> buffer_words;
     void setup_buffer_words();
     std::atomic<bool> show_prefix_buffer_word = {false}; /// To avoid showing the current word if it is unique in document
diff --git a/src/source_language_protocol.cc b/src/source_language_protocol.cc
index 016fe75..500e6c5 100644
--- a/src/source_language_protocol.cc
+++ b/src/source_language_protocol.cc
@@ -85,7 +85,7 @@ LanguageProtocol::Client::~Client() {
   });
   result_processed.get_future().get();
 
-  std::unique_lock<std::mutex> lock(timeout_threads_mutex);
+  std::lock_guard<std::mutex> lock(timeout_threads_mutex);
   for(auto &thread : timeout_threads)
     thread.join();
 
@@ -103,7 +103,7 @@ LanguageProtocol::Client::~Client() {
 
 LanguageProtocol::Capabilities LanguageProtocol::Client::initialize(Source::LanguageProtocolView *view) {
   if(view) {
-    std::unique_lock<std::mutex> lock(views_mutex);
+    std::lock_guard<std::mutex> lock(views_mutex);
     views.emplace(view);
   }
 
@@ -145,12 +145,12 @@ LanguageProtocol::Capabilities LanguageProtocol::Client::initialize(Source::Lang
 
 void LanguageProtocol::Client::close(Source::LanguageProtocolView *view) {
   {
-    std::unique_lock<std::mutex> lock(views_mutex);
+    std::lock_guard<std::mutex> lock(views_mutex);
     auto it = views.find(view);
     if(it != views.end())
       views.erase(it);
   }
-  std::unique_lock<std::mutex> lock(read_write_mutex);
+  std::lock_guard<std::mutex> lock(read_write_mutex);
   for(auto it = handlers.begin(); it != handlers.end();) {
     if(it->second.first == view)
       it = handlers.erase(it);
@@ -272,11 +272,11 @@ void LanguageProtocol::Client::write_request(Source::LanguageProtocolView *view,
     handlers.emplace(message_id, std::make_pair(view, std::move(function)));
 
     auto message_id = this->message_id;
-    std::unique_lock<std::mutex> lock(timeout_threads_mutex);
+    std::lock_guard<std::mutex> lock(timeout_threads_mutex);
     timeout_threads.emplace_back([this, message_id] {
       for(size_t c = 0; c < 20; ++c) {
         std::this_thread::sleep_for(std::chrono::milliseconds(500));
-        std::unique_lock<std::mutex> lock(read_write_mutex);
+        std::lock_guard<std::mutex> lock(read_write_mutex);
         auto id_it = handlers.find(message_id);
         if(id_it == handlers.end())
           return;
@@ -311,7 +311,7 @@ void LanguageProtocol::Client::write_request(Source::LanguageProtocolView *view,
 }
 
 void LanguageProtocol::Client::write_notification(const std::string &method, const std::string &params) {
-  std::unique_lock<std::mutex> lock(read_write_mutex);
+  std::lock_guard<std::mutex> lock(read_write_mutex);
   std::string content(R"({"jsonrpc":"2.0","method":")" + method + R"(","params":{)" + params + "}}");
   auto message = "Content-Length: " + std::to_string(content.size()) + "\r\n\r\n" + content;
   if(Config::get().log.language_server)
@@ -332,7 +332,7 @@ void LanguageProtocol::Client::handle_server_request(const std::string &method,
         catch(...) {
         }
       }
-      std::unique_lock<std::mutex> lock(views_mutex);
+      std::lock_guard<std::mutex> lock(views_mutex);
       for(auto view : views) {
         if(uri.size() >= 7 && uri.compare(7, std::string::npos, view->file_path.string()) == 0) {
           view->update_diagnostics(std::move(diagnostics));
@@ -1261,7 +1261,7 @@ void Source::LanguageProtocolView::setup_autocomplete() {
     std::smatch sm;
     if(std::regex_match(line, sm, regex)) {
       {
-        std::unique_lock<std::mutex> lock(autocomplete.prefix_mutex);
+        std::lock_guard<std::mutex> lock(autocomplete.prefix_mutex);
         autocomplete.prefix = sm.length(2) ? sm[3].str() : sm.length(4) ? sm[5].str() : sm[6].str();
         if(!sm.length(2) && !sm.length(4))
           autocomplete_enable_snippets = true;
@@ -1270,7 +1270,7 @@ void Source::LanguageProtocolView::setup_autocomplete() {
     }
     else if(is_possible_argument()) {
       autocomplete_show_parameters = true;
-      std::unique_lock<std::mutex> lock(autocomplete.prefix_mutex);
+      std::lock_guard<std::mutex> lock(autocomplete.prefix_mutex);
       autocomplete.prefix = "";
       return true;
     }
@@ -1283,7 +1283,7 @@ void Source::LanguageProtocolView::setup_autocomplete() {
         iter.forward_char();
 
       {
-        std::unique_lock<std::mutex> lock(autocomplete.prefix_mutex);
+        std::lock_guard<std::mutex> lock(autocomplete.prefix_mutex);
         autocomplete.prefix = get_buffer()->get_text(iter, end_iter);
       }
       auto prev1 = iter;
@@ -1401,7 +1401,7 @@ void Source::LanguageProtocolView::setup_autocomplete() {
             if(autocomplete_enable_snippets) {
               std::string prefix;
               {
-                std::unique_lock<std::mutex> lock(autocomplete.prefix_mutex);
+                std::lock_guard<std::mutex> lock(autocomplete.prefix_mutex);
                 prefix = autocomplete.prefix;
               }
               std::lock_guard<std::mutex> lock(snippets_mutex);
diff --git a/src/terminal.cc b/src/terminal.cc
index a397dab..6662eed 100644
--- a/src/terminal.cc
+++ b/src/terminal.cc
@@ -120,7 +120,7 @@ void Terminal::async_process(const std::string &command, const boost::filesystem
 }
 
 void Terminal::kill_last_async_process(bool force) {
-  std::unique_lock<std::mutex> lock(processes_mutex);
+  std::lock_guard<std::mutex> lock(processes_mutex);
   if(processes.empty())
     Info::get().print("No running processes");
   else
@@ -128,7 +128,7 @@ void Terminal::kill_last_async_process(bool force) {
 }
 
 void Terminal::kill_async_processes(bool force) {
-  std::unique_lock<std::mutex> lock(processes_mutex);
+  std::lock_guard<std::mutex> lock(processes_mutex);
   for(auto &process : processes)
     process->kill(force);
 }
@@ -393,7 +393,7 @@ bool Terminal::on_button_press_event(GdkEventButton *button_event) {
 }
 
 bool Terminal::on_key_press_event(GdkEventKey *event) {
-  std::unique_lock<std::mutex> lock(processes_mutex);
+  std::lock_guard<std::mutex> lock(processes_mutex);
   bool debug_is_running = false;
 #ifdef JUCI_ENABLE_DEBUG
   debug_is_running = Project::current ? Project::current->debug_is_running() : false;
diff --git a/src/usages_clang.cc b/src/usages_clang.cc
index 4f5acb9..782c1b1 100644
--- a/src/usages_clang.cc
+++ b/src/usages_clang.cc
@@ -170,7 +170,7 @@ std::vector<Usages::Clang::Usages> Usages::Clang::get_usages(const boost::filesy
 
   // Use cache
   for(auto it = potential_paths.begin(); it != potential_paths.end();) {
-    std::unique_lock<std::mutex> lock(caches_mutex);
+    std::lock_guard<std::mutex> lock(caches_mutex);
     auto caches_it = caches.find(*it);
 
     // Load cache from file if not found in memory and if cache file exists
@@ -222,7 +222,7 @@ std::vector<Usages::Clang::Usages> Usages::Clang::get_usages(const boost::filesy
           boost::filesystem::path path;
           {
             static std::mutex mutex;
-            std::unique_lock<std::mutex> lock(mutex);
+            std::lock_guard<std::mutex> lock(mutex);
             if(it == potential_paths.end())
               return;
             path = *it;
@@ -231,7 +231,7 @@ std::vector<Usages::Clang::Usages> Usages::Clang::get_usages(const boost::filesy
 
           {
             static std::mutex mutex;
-            std::unique_lock<std::mutex> lock(mutex);
+            std::lock_guard<std::mutex> lock(mutex);
             // std::cout << "parsing: " << path << std::endl;
           }
           // auto before_time = std::chrono::system_clock::now();
@@ -258,7 +258,7 @@ std::vector<Usages::Clang::Usages> Usages::Clang::get_usages(const boost::filesy
 
           {
             static std::mutex mutex;
-            std::unique_lock<std::mutex> lock(mutex);
+            std::lock_guard<std::mutex> lock(mutex);
             add_usages(project_path, build_path, path, usages, visited, spelling, cursor, &translation_unit, true);
             add_usages_from_includes(project_path, build_path, usages, visited, spelling, cursor, &translation_unit, true);
           }
@@ -295,7 +295,7 @@ void Usages::Clang::cache(const boost::filesystem::path &project_path, const boo
     return;
 
   {
-    std::unique_lock<std::mutex> lock(caches_mutex);
+    std::lock_guard<std::mutex> lock(caches_mutex);
     if(project_paths_in_use.count(project_path)) {
       caches.erase(path);
       caches.emplace(path, Cache(project_path, build_path, path, before_parse_time, translation_unit, tokens));
@@ -330,7 +330,7 @@ void Usages::Clang::cache(const boost::filesystem::path &project_path, const boo
     if(file_size == static_cast<boost::uintmax_t>(-1) || ec)
       continue;
     auto tokens = translation_unit->get_tokens(path.string(), 0, file_size - 1);
-    std::unique_lock<std::mutex> lock(caches_mutex);
+    std::lock_guard<std::mutex> lock(caches_mutex);
     if(project_paths_in_use.count(project_path)) {
       caches.erase(path);
       caches.emplace(path, Cache(project_path, build_path, path, before_parse_time, translation_unit, tokens.get()));
@@ -341,7 +341,7 @@ void Usages::Clang::cache(const boost::filesystem::path &project_path, const boo
 }
 
 void Usages::Clang::erase_unused_caches(const PathSet &project_paths_in_use) {
-  std::unique_lock<std::mutex> lock(caches_mutex);
+  std::lock_guard<std::mutex> lock(caches_mutex);
   for(auto it = caches.begin(); it != caches.end();) {
     bool found = false;
     for(auto &project_path : project_paths_in_use) {
@@ -360,7 +360,7 @@ void Usages::Clang::erase_unused_caches(const PathSet &project_paths_in_use) {
 }
 
 void Usages::Clang::erase_cache(const boost::filesystem::path &path) {
-  std::unique_lock<std::mutex> lock(caches_mutex);
+  std::lock_guard<std::mutex> lock(caches_mutex);
 
   auto it = caches.find(path);
   if(it == caches.end())
@@ -378,7 +378,7 @@ void Usages::Clang::erase_all_caches_for_project(const boost::filesystem::path &
   if(cache_in_progress_count != 0)
     std::this_thread::sleep_for(std::chrono::milliseconds(10));
 
-  std::unique_lock<std::mutex> lock(caches_mutex);
+  std::lock_guard<std::mutex> lock(caches_mutex);
   boost::system::error_code ec;
   auto usages_clang_path = build_path / cache_folder;
   if(boost::filesystem::exists(usages_clang_path, ec) && boost::filesystem::is_directory(usages_clang_path, ec)) {
@@ -441,7 +441,7 @@ void Usages::Clang::add_usages(const boost::filesystem::path &project_path, cons
   }
 
   if(store_in_cache && filesystem::file_in_path(path, project_path)) {
-    std::unique_lock<std::mutex> lock(caches_mutex);
+    std::lock_guard<std::mutex> lock(caches_mutex);
     caches.erase(path);
     caches.emplace(path, Cache(project_path, build_path, path, before_parse_time, translation_unit, tokens.get()));
   }