diff --git a/MODULE.bazel b/MODULE.bazel
index b003b379..8c319445 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -9,5 +9,5 @@ module(
 # Lower-bound versions of direct dependencies.
 # When bumping, add a comment explaining what's required from the newer release.
 bazel_dep(name = "aspect_bazel_lib", version = "1.33.0")
-bazel_dep(name = "bazel_skylib", version = "1.4.0")
+bazel_dep(name = "bazel_skylib", version = "1.4.2")
 bazel_dep(name = "rules_python", version = "0.19.0")
diff --git a/internal_deps.bzl b/internal_deps.bzl
index 33832474..386c039a 100644
--- a/internal_deps.bzl
+++ b/internal_deps.bzl
@@ -44,9 +44,9 @@ def rules_py_internal_deps():
     # see https://github.com/bazelbuild/bazel-skylib/issues/250
     http_archive(
         name = "bazel_skylib",
-        sha256 = "3b620033ca48fcd6f5ef2ac85e0f6ec5639605fa2f627968490e52fc91a9932f",
-        strip_prefix = "bazel-skylib-1.3.0",
-        url = "https://github.com/bazelbuild/bazel-skylib/archive/refs/tags/1.3.0.tar.gz",
+        sha256 = "de9d2cedea7103d20c93a5cc7763099728206bd5088342d0009315913a592cc0",
+        strip_prefix = "bazel-skylib-1.4.2",
+        url = "https://github.com/bazelbuild/bazel-skylib/archive/refs/tags/1.4.2.tar.gz",
     )
 
     http_archive(
diff --git a/py/repositories.bzl b/py/repositories.bzl
index db6b0415..a3aeba6f 100644
--- a/py/repositories.bzl
+++ b/py/repositories.bzl
@@ -24,9 +24,9 @@ def rules_py_dependencies():
     # The minimal version of bazel_skylib we require
     http_archive(
         name = "bazel_skylib",
-        sha256 = "3b620033ca48fcd6f5ef2ac85e0f6ec5639605fa2f627968490e52fc91a9932f",
-        strip_prefix = "bazel-skylib-1.3.0",
-        url = "https://github.com/bazelbuild/bazel-skylib/archive/refs/tags/1.3.0.tar.gz",
+        sha256 = "de9d2cedea7103d20c93a5cc7763099728206bd5088342d0009315913a592cc0",
+        strip_prefix = "bazel-skylib-1.4.2",
+        url = "https://github.com/bazelbuild/bazel-skylib/archive/refs/tags/1.4.2.tar.gz",
     )
 
     http_archive(