diff --git a/docker/Dockerfile b/docker/Dockerfile
index 6224d4a..2744b4f 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,6 +1,6 @@
 FROM racket/racket:8.9
 WORKDIR /app
-RUN apt update -y && apt upgrade -y \
+RUN apt update -y \
     && apt install -y --no-install-recommends git \
     && apt autoclean -y \
     && apt autoremove -y \