diff --git a/sdk/android/api/org/webrtc/EglRenderer.java b/sdk/android/api/org/webrtc/EglRenderer.java
index 9004e7c..47bd0cf 100644
--- a/sdk/android/api/org/webrtc/EglRenderer.java
+++ b/sdk/android/api/org/webrtc/EglRenderer.java
@@ -290,7 +290,9 @@
       // Release EGL and GL resources on render thread.
       renderThreadHandler.postAtFrontOfQueue(() -> {
         // Detach current shader program.
-        GLES20.glUseProgram(/* program= */ 0);
+        synchronized (EglBase.lock) {
+          GLES20.glUseProgram(/* program= */ 0);
+        }
         if (drawer != null) {
           drawer.release();
           drawer = null;