diff --git a/MODULE.bazel b/MODULE.bazel
index cefa0a5f67b4b..8c839b57c2b48 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -40,7 +40,7 @@ bazel_dep(name = "yaml-cpp", version = "0.8.0", dev_dependency = True, repo_name
 bazel_dep(name = "pugixml", version = "1.14.bcr.1", dev_dependency = True, repo_name = "com_github_zeux_pugixml")
 
 # Our `curl.BUILD` file uses these.
-bazel_dep(name = "zlib", version = "1.3.1.bcr.3")
+bazel_dep(name = "zlib", version = "1.3.1.bcr.4")
 bazel_dep(name = "c-ares", version = "1.16.1", repo_name = "com_github_cares_cares")
 
 python = use_extension("@rules_python//python/extensions:python.bzl", "python")