diff --git a/Dockerfile b/Dockerfile
index 0dcc8c2..ade0745 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ ARG PLEX_VER=1.43.0.10492-121068a07
 ARG BUSYBOX_VER=1.37.0
 ARG SU_EXEC_VER=0.4
 ARG TINI_VER=924c4bd6028457188942ecbfdc75e6a343fa9395
-ARG ZLIB_VER=1.3.1
+ARG ZLIB_VER=1.3.2
 # https://sourceforge.net/p/xmlstar/bugs/135/
 # https://bugs.gentoo.org/944765
 ARG LIBXML2_VER=2.13.4