diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index bca2271..d6f303f 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -3,8 +3,8 @@
 def external_plugin_deps():
     maven_jar(
         name = "wiremock",
-        artifact = "com.github.tomakehurst:wiremock-standalone:2.20.0",
-        sha1 = "26e5d42ca7af2a9d4b97129595edd0192ad9bd30",
+        artifact = "com.github.tomakehurst:wiremock-standalone:2.21.0",
+        sha1 = "68807a39d80a19222316c57bf9a9d987ed26a0e3",
     )
 
     maven_jar(