diff --git a/zig.mod b/zig.mod
index 5356332862154ed1a9d02d440a587cd177534469..602d8288864115b9358e8a5b511b31666ac78042 100644
--- a/zig.mod
+++ b/zig.mod
@@ -11,6 +11,7 @@ dependencies:
   - src: git https://github.com/nektro/zig-nio
 
   - src: git https://github.com/madler/zlib tag-v1.3.2
+    id: 0e2d06bb494bf65ffa1b6d9c9070162631a8b9fac792a899
     license: Zlib
     c_include_dirs:
       -