diff --git a/Dockerfile.m4 b/Dockerfile.m4
index bc0db21..42b15d3 100644
--- a/Dockerfile.m4
+++ b/Dockerfile.m4
@@ -171,7 +171,7 @@ RUN dpkg -i ./virtualgl32_*.deb
 ]])m4_dnl
 
 # Build TurboVNC
-ARG TURBOVNC_TREEISH=3.0
+ARG TURBOVNC_TREEISH=3.0.1
 ARG TURBOVNC_REMOTE=https://github.com/TurboVNC/turbovnc.git
 RUN mkdir /tmp/turbovnc/
 WORKDIR /tmp/turbovnc/