diff --git a/Dockerfile.m4 b/Dockerfile.m4
index 7afed01..8f0a3fd 100644
--- a/Dockerfile.m4
+++ b/Dockerfile.m4
@@ -101,7 +101,7 @@ RUN <<-EOF
 EOF
 
 # Build VirtualGL
-ARG VIRTUALGL_TREEISH=3.1.2
+ARG VIRTUALGL_TREEISH=3.1.3
 ARG VIRTUALGL_REMOTE=https://github.com/VirtualGL/virtualgl.git
 WORKDIR /tmp/virtualgl/
 RUN <<-EOF