diff --git a/docker/client/rundeck-cli/package-lock.json b/docker/client/rundeck-cli/package-lock.json
index 5476955..5e4fe3b 100644
--- a/docker/client/rundeck-cli/package-lock.json
+++ b/docker/client/rundeck-cli/package-lock.json
@@ -264,9 +264,9 @@
       }
     },
     "node_modules/diff": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.4.tgz",
-      "integrity": "sha512-X07nttJQkwkfKfvTPG/KSnE2OMdcUCao6+eXF3wmnIQRn2aPAHH3VxDbDOdegkd6JbPsXqShpvEOHfAT+nCNwQ==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-9.0.0.tgz",
+      "integrity": "sha512-svtcdpS8CgJyqAjEQIXdb3OjhFVVYjzGAPO8WGCmRbrml64SPw/jJD4GoE98aR7r25A0XcgrK3F02yw9R/vhQw==",
       "license": "BSD-3-Clause",
       "engines": {
         "node": ">=0.3.1"
diff --git a/docker/client/rundeck-cli/package.json b/docker/client/rundeck-cli/package.json
index 2e9c043..2ca8053 100644
--- a/docker/client/rundeck-cli/package.json
+++ b/docker/client/rundeck-cli/package.json
@@ -32,6 +32,6 @@
     "tough-cookie": "4.1.4",
     "xml-js": "0.5.1",
     "xml2js": "0.6.2",
-    "diff": "4.0.4"
+    "diff": "9.0.0"
   }
 }