diff --git a/Dockerfile b/Dockerfile
index ad3b586d83..9cca13c0e8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,8 @@
 FROM golang:1.21 AS tinygo-llvm
 
 RUN apt-get update && \
-    apt-get install -y apt-utils make cmake clang-15 ninja-build
+    apt-get install -y apt-utils make cmake clang-15 ninja-build && \
+    rm -rf /var/lib/apt/lists/*
 
 COPY ./Makefile /tinygo/Makefile