diff --git a/packages/cli/package.json b/packages/cli/package.json
index 88c48fea3..aaaf68755 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -19,7 +19,7 @@
     "glob": "7.1.2",
     "has-yarn": "1.0.0",
     "inquirer": "5.1.0",
-    "lodash": "4.17.10",
+    "lodash": "4.17.21",
     "ora": "2.1.0",
     "path-exists": "3.0.0",
     "sanitize-filename": "1.6.1"
diff --git a/packages/core/package.json b/packages/core/package.json
index aa8449531..d41473456 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -14,7 +14,7 @@
     "graphlib": "2.1.1",
     "js-beautify": "1.6.3",
     "js-yaml": "3.6.1",
-    "lodash": "4.17.5",
+    "lodash": "4.17.21",
     "markdown-it": "6.0.1",
     "node-fetch": "1.6.0",
     "recursive-copy": "2.0.8",
diff --git a/packages/plugin-tab/package.json b/packages/plugin-tab/package.json
index b83ac632a..85239dbe6 100644
--- a/packages/plugin-tab/package.json
+++ b/packages/plugin-tab/package.json
@@ -6,7 +6,7 @@
   "dependencies": {
     "fs-extra": "0.30.0",
     "glob": "7.0.0",
-    "lodash": "4.17.5"
+    "lodash": "4.17.21"
   },
   "repository": "https://github.com/pattern-lab/patternlab-node/tree/master/packages/plugin-tab",
   "bugs": "https://github.com/pattern-lab/patternlab-node/issues",