diff --git a/package_versions.txt b/package_versions.txt
index c9f7309..f029b5a 100755
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -212,5 +212,5 @@ x265-libs-3.4-r0
 xvidcore-1.3.7-r1
 xz-5.2.5-r0
 xz-libs-5.2.5-r0
-zlib-1.2.11-r3
+zlib-1.2.12-r0
 zstd-libs-1.4.9-r1