diff --git a/util/test/demos/gl/gl_test.cpp b/util/test/demos/gl/gl_test.cpp
index 6a32635c0..7b99538c4 100644
--- a/util/test/demos/gl/gl_test.cpp
+++ b/util/test/demos/gl/gl_test.cpp
@@ -27,7 +27,7 @@
 
 static std::string common = R"EOSHADER(
 
-#version 420 core
+#version 410 core
 
 #define v2f v2f_block \
 {                     \