diff --git a/org.ppsspp.PPSSPP.json b/org.ppsspp.PPSSPP.json
index f5bafa6..92738b9 100644
--- a/org.ppsspp.PPSSPP.json
+++ b/org.ppsspp.PPSSPP.json
@@ -2,7 +2,7 @@
   "app-id": "org.ppsspp.PPSSPP",
   "branch": "stable",
   "runtime": "org.freedesktop.Platform",
-  "runtime-version": "20.08",
+  "runtime-version": "21.08",
   "sdk": "org.freedesktop.Sdk",
   "rename-icon": "ppsspp",
   "command": "PPSSPPSDL",
@@ -23,8 +23,7 @@
         "arch": {
           "aarch64": {
             "env": {
-              "CC": "clang",
-              "CXX": "clang++"
+              "EXTRA_OPTS":"-DUSING_GLES2=ON"
             }
           }
         }