diff --git a/src/MagnumExternal/OpenGL/GL/flextGL.cpp b/src/MagnumExternal/OpenGL/GL/flextGL.cpp
index 327438d99..bf1da3df5 100644
--- a/src/MagnumExternal/OpenGL/GL/flextGL.cpp
+++ b/src/MagnumExternal/OpenGL/GL/flextGL.cpp
@@ -611,6 +611,10 @@ FLEXTGL_EXPORT void(APIENTRY *flextglGetVertexArrayIndexed64iv)(GLuint, GLuint,
 FLEXTGL_EXPORT void(APIENTRY *flextglCreateSamplers)(GLsizei, GLuint *) = nullptr;
 FLEXTGL_EXPORT void(APIENTRY *flextglCreateProgramPipelines)(GLsizei, GLuint *) = nullptr;
 FLEXTGL_EXPORT void(APIENTRY *flextglCreateQueries)(GLenum, GLsizei, GLuint *) = nullptr;
+FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryBufferObjecti64v)(GLuint, GLuint, GLenum, GLintptr) = nullptr;
+FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryBufferObjectiv)(GLuint, GLuint, GLenum, GLintptr) = nullptr;
+FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryBufferObjectui64v)(GLuint, GLuint, GLenum, GLintptr) = nullptr;
+FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryBufferObjectuiv)(GLuint, GLuint, GLenum, GLintptr) = nullptr;
 FLEXTGL_EXPORT void(APIENTRY *flextglMemoryBarrierByRegion)(GLbitfield) = nullptr;
 FLEXTGL_EXPORT void(APIENTRY *flextglGetTextureSubImage)(GLuint, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLenum, GLsizei, void *) = nullptr;
 FLEXTGL_EXPORT void(APIENTRY *flextglGetCompressedTextureSubImage)(GLuint, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLsizei, void *) = nullptr;
diff --git a/src/MagnumExternal/OpenGL/GL/flextGL.h b/src/MagnumExternal/OpenGL/GL/flextGL.h
index 78d44e490..13718c29d 100644
--- a/src/MagnumExternal/OpenGL/GL/flextGL.h
+++ b/src/MagnumExternal/OpenGL/GL/flextGL.h
@@ -1086,6 +1086,10 @@ typedef void (APIENTRY *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum
 
 /* GL_VERSION_4_2 */
 
+#define GL_COPY_READ_BUFFER_BINDING 0x8F36
+#define GL_COPY_WRITE_BUFFER_BINDING 0x8F37
+#define GL_TRANSFORM_FEEDBACK_ACTIVE 0x8E24
+#define GL_TRANSFORM_FEEDBACK_PAUSED 0x8E23
 #define GL_UNPACK_COMPRESSED_BLOCK_WIDTH 0x9127
 #define GL_UNPACK_COMPRESSED_BLOCK_HEIGHT 0x9128
 #define GL_UNPACK_COMPRESSED_BLOCK_DEPTH 0x9129
@@ -1516,6 +1520,7 @@ typedef void (APIENTRY *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum
 #define GL_TEXTURE_BINDING_CUBE_MAP_ARRAY 0x900A
 #define GL_TEXTURE_BINDING_RECTANGLE 0x84F6
 #define GL_TEXTURE_BINDING 0x82EB
+#define GL_BACK 0x0405
 #define GL_NO_ERROR 0
 #define GL_GUILTY_CONTEXT_RESET 0x8253
 #define GL_INNOCENT_CONTEXT_RESET 0x8254
@@ -2847,6 +2852,14 @@ GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglCreateProgramPipelines)(GLsizei, GLui
 #define glCreateProgramPipelines flextglCreateProgramPipelines
 GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglCreateQueries)(GLenum, GLsizei, GLuint *);
 #define glCreateQueries flextglCreateQueries
+GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryBufferObjecti64v)(GLuint, GLuint, GLenum, GLintptr);
+#define glGetQueryBufferObjecti64v flextglGetQueryBufferObjecti64v
+GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryBufferObjectiv)(GLuint, GLuint, GLenum, GLintptr);
+#define glGetQueryBufferObjectiv flextglGetQueryBufferObjectiv
+GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryBufferObjectui64v)(GLuint, GLuint, GLenum, GLintptr);
+#define glGetQueryBufferObjectui64v flextglGetQueryBufferObjectui64v
+GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglGetQueryBufferObjectuiv)(GLuint, GLuint, GLenum, GLintptr);
+#define glGetQueryBufferObjectuiv flextglGetQueryBufferObjectuiv
 GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglMemoryBarrierByRegion)(GLbitfield);
 #define glMemoryBarrierByRegion flextglMemoryBarrierByRegion
 GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglGetTextureSubImage)(GLuint, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLenum, GLsizei, void *);
diff --git a/src/MagnumExternal/OpenGL/GL/flextGLPlatform.cpp b/src/MagnumExternal/OpenGL/GL/flextGLPlatform.cpp
index c27911197..bdbdcb8bc 100644
--- a/src/MagnumExternal/OpenGL/GL/flextGLPlatform.cpp
+++ b/src/MagnumExternal/OpenGL/GL/flextGLPlatform.cpp
@@ -615,6 +615,10 @@ void flextGLInit() {
     flextglCreateSamplers = reinterpret_cast<void(APIENTRY*)(GLsizei, GLuint *)>(loader.load("glCreateSamplers"));
     flextglCreateProgramPipelines = reinterpret_cast<void(APIENTRY*)(GLsizei, GLuint *)>(loader.load("glCreateProgramPipelines"));
     flextglCreateQueries = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLuint *)>(loader.load("glCreateQueries"));
+    flextglGetQueryBufferObjecti64v = reinterpret_cast<void(APIENTRY*)(GLuint, GLuint, GLenum, GLintptr)>(loader.load("glGetQueryBufferObjecti64v"));
+    flextglGetQueryBufferObjectiv = reinterpret_cast<void(APIENTRY*)(GLuint, GLuint, GLenum, GLintptr)>(loader.load("glGetQueryBufferObjectiv"));
+    flextglGetQueryBufferObjectui64v = reinterpret_cast<void(APIENTRY*)(GLuint, GLuint, GLenum, GLintptr)>(loader.load("glGetQueryBufferObjectui64v"));
+    flextglGetQueryBufferObjectuiv = reinterpret_cast<void(APIENTRY*)(GLuint, GLuint, GLenum, GLintptr)>(loader.load("glGetQueryBufferObjectuiv"));
     flextglMemoryBarrierByRegion = reinterpret_cast<void(APIENTRY*)(GLbitfield)>(loader.load("glMemoryBarrierByRegion"));
     flextglGetTextureSubImage = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLenum, GLsizei, void *)>(loader.load("glGetTextureSubImage"));
     flextglGetCompressedTextureSubImage = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLsizei, void *)>(loader.load("glGetCompressedTextureSubImage"));