diff --git a/server/Dockerfile b/server/Dockerfile
index 53e530f..0a9ec86 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -1,7 +1,8 @@
 FROM pytorch/pytorch:2.0.1-cuda11.7-cudnn8-devel
 WORKDIR /app
 COPY requirements.frozen.txt .
-RUN python -m pip install --no-deps -r requirements.frozen.txt
+RUN python -m pip install --no-deps -r requirements.frozen.txt \
+    && python -m pip cache purge
 
 COPY main.py .
 
diff --git a/server/Dockerfile.cuda118 b/server/Dockerfile.cuda118
index a097bca..d8fb1a1 100644
--- a/server/Dockerfile.cuda118
+++ b/server/Dockerfile.cuda118
@@ -1,7 +1,8 @@
 FROM pytorch/pytorch:2.1.0-cuda11.8-cudnn8-devel
 WORKDIR /app
 COPY requirements.txt .
-RUN python -m pip install --use-deprecated=legacy-resolver -r requirements.txt
+RUN python -m pip install --use-deprecated=legacy-resolver -r requirements.txt \
+    && python -m pip cache purge
 
 COPY main.py .