diff --git a/base/Dockerfile b/base/Dockerfile
index 7ff3b7d..33d9ee7 100644
--- a/base/Dockerfile
+++ b/base/Dockerfile
@@ -43,7 +43,7 @@ RUN \
         util-linux-dev=2.38.1-r1 \
         xz-dev=5.2.9-r0 \
         xz=5.2.9-r0 \
-        zlib-dev=1.2.12-r3 \
+        zlib-dev=1.2.13-r0 \
     \
     && curl -J -L -o /tmp/python.tar.xz \
         "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \