diff --git a/autonomous_driving/Dockerfile b/autonomous_driving/Dockerfile
index d0d7da8..1781286 100644
--- a/autonomous_driving/Dockerfile
+++ b/autonomous_driving/Dockerfile
@@ -33,6 +33,8 @@ RUN pip3 install pygame==1.9.6
 
 WORKDIR /home/erdos/workspace/pylot
 RUN git pull
+ENV PYLOT_SHA1 fdba02482f7be134a106479c96ad43273f4235d3
+RUN git reset --hard $PYLOT_SHA1
 
 # ============= PREPARE ENVIRONMENT FOR SIMULATION ============= #