diff --git a/muggled-sam/Dockerfile b/muggled-sam/Dockerfile
index 32cd26d..06451a5 100644
--- a/muggled-sam/Dockerfile
+++ b/muggled-sam/Dockerfile
@@ -7,7 +7,8 @@ RUN pip install \
 RUN apt-get update && apt-get install -y \
         ffmpeg \
         libsm6 \
-        libxext6
+        libxext6 && \
+    rm -rf /var/lib/apt/lists/*
 
 WORKDIR /workspace/muggled-sam