diff --git a/zmbuilder/Dockerfile b/zmbuilder/Dockerfile
index 9e168b6..3e84d9b 100644
--- a/zmbuilder/Dockerfile
+++ b/zmbuilder/Dockerfile
@@ -2,7 +2,7 @@ FROM almalinux:8
 MAINTAINER Daniel Berteaud <dbd@ehtrace.com>
 
 ARG ZM_VERSION=9.0.0 \
-    ZM_PATCH=38
+    ZM_PATCH=39
 
 ENV ZM_VERSION=${ZM_VERSION} \
     ZM_PATCH=${ZM_PATCH}