diff --git a/thirdparty/README.md b/thirdparty/README.md
index f1e4d30ec2..948ccf7b8a 100644
--- a/thirdparty/README.md
+++ b/thirdparty/README.md
@@ -117,7 +117,7 @@ Files extracted from upstream source:
 ## glad
 
 - Upstream: https://github.com/Dav1dde/glad
-- Version: 0.1.20a0
+- Version: 0.1.25
 - License: MIT
 
 The files we package are automatically generated.
diff --git a/thirdparty/glad/glad.c b/thirdparty/glad/glad.c
index 8f8b2189ec..dd6fe8b8f3 100644
--- a/thirdparty/glad/glad.c
+++ b/thirdparty/glad/glad.c
@@ -1,6 +1,6 @@
 /*
 
-    OpenGL loader generated by glad 0.1.20a0 on Fri May  4 21:44:11 2018.
+    OpenGL loader generated by glad 0.1.25 on Sat Jul 28 10:59:43 2018.
 
     Language/Generator: C/C++
     Specification: gl
@@ -56,8 +56,9 @@ int open_gl(void) {
 #ifndef IS_UWP
     libGL = LoadLibraryW(L"opengl32.dll");
     if(libGL != NULL) {
-        gladGetProcAddressPtr = (PFNWGLGETPROCADDRESSPROC_PRIVATE)GetProcAddress(
-                libGL, "wglGetProcAddress");
+        void (* tmp)(void);
+        tmp = (void(*)(void)) GetProcAddress(libGL, "wglGetProcAddress");
+        gladGetProcAddressPtr = (PFNWGLGETPROCADDRESSPROC_PRIVATE) tmp;
         return gladGetProcAddressPtr != NULL;
     }
 #endif
@@ -164,7 +165,7 @@ static int max_loaded_minor;
 
 static const char *exts = NULL;
 static int num_exts_i = 0;
-static const char **exts_i = NULL;
+static char **exts_i = NULL;
 
 static int get_exts(void) {
 #ifdef _GLAD_IS_SOME_NEW_VERSION
@@ -178,7 +179,7 @@ static int get_exts(void) {
         num_exts_i = 0;
         glGetIntegerv(GL_NUM_EXTENSIONS, &num_exts_i);
         if (num_exts_i > 0) {
-            exts_i = (const char **)realloc((void *)exts_i, (size_t)num_exts_i * (sizeof *exts_i));
+            exts_i = (char **)realloc((void *)exts_i, (size_t)num_exts_i * (sizeof *exts_i));
         }
 
         if (exts_i == NULL) {
@@ -191,11 +192,7 @@ static int get_exts(void) {
 
             char *local_str = (char*)malloc((len+1) * sizeof(char));
             if(local_str != NULL) {
-#if _MSC_VER >= 1400
-                strncpy_s(local_str, len+1, gl_str_tmp, len);
-#else
-                strncpy(local_str, gl_str_tmp, len+1);
-#endif
+                memcpy(local_str, gl_str_tmp, (len+1) * sizeof(char));
             }
             exts_i[index] = local_str;
         }
diff --git a/thirdparty/glad/glad/glad.h b/thirdparty/glad/glad/glad.h
index 4eebad4f2f..4d92d33b37 100644
--- a/thirdparty/glad/glad/glad.h
+++ b/thirdparty/glad/glad/glad.h
@@ -1,6 +1,6 @@
 /*
 
-    OpenGL loader generated by glad 0.1.20a0 on Fri May  4 21:44:11 2018.
+    OpenGL loader generated by glad 0.1.25 on Sat Jul 28 10:59:43 2018.
 
     Language/Generator: C/C++
     Specification: gl
@@ -156,16 +156,8 @@ typedef unsigned int GLhandleARB;
 typedef unsigned short GLhalfARB;
 typedef unsigned short GLhalf;
 typedef GLint GLfixed;
-#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)
-typedef long GLintptr;
-#else
-typedef ptrdiff_t GLintptr;
-#endif
-#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)
-typedef long GLsizeiptr;
-#else
-typedef ptrdiff_t GLsizeiptr;
-#endif
+typedef khronos_intptr_t GLintptr;
+typedef khronos_ssize_t GLsizeiptr;
 typedef int64_t GLint64;
 typedef uint64_t GLuint64;
 #if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)