diff --git a/server/Dockerfile b/server/Dockerfile
index 0a6a4ec..2323faf 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.13.3-slim
+FROM python:3.13.4-slim
 
 ENV DEVPISERVER_SERVERDIR=/devpi/server
 RUN mkdir -p $DEVPISERVER_SERVERDIR && \
diff --git a/server/Dockerfile-alpine b/server/Dockerfile-alpine
index b7a4cb4..d0024d4 100644
--- a/server/Dockerfile-alpine
+++ b/server/Dockerfile-alpine
@@ -1,4 +1,4 @@
-FROM python:3.13.3-alpine
+FROM python:3.13.4-alpine
 
 ENV DEVPISERVER_SERVERDIR=/devpi/server
 RUN mkdir -p $DEVPISERVER_SERVERDIR && \