diff --git a/package-lock.json b/package-lock.json
index be77411..5030f74 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -368,9 +368,9 @@
       }
     },
     "@rollup/plugin-commonjs": {
-      "version": "11.1.0",
-      "resolved": "https://registry.npmjs.org/@rollup/plugin-commonjs/-/plugin-commonjs-11.1.0.tgz",
-      "integrity": "sha512-Ycr12N3ZPN96Fw2STurD21jMqzKwL9QuFhms3SD7KKRK7oaXUsBU9Zt0jL/rOPHiPYisI21/rXGO3jr9BnLHUA==",
+      "version": "12.0.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-commonjs/-/plugin-commonjs-12.0.0.tgz",
+      "integrity": "sha512-8+mDQt1QUmN+4Y9D3yCG8AJNewuTSLYPJVzKKUZ+lGeQrI+bV12Tc5HCyt2WdlnG6ihIL/DPbKRJlB40DX40mw==",
       "requires": {
         "@rollup/pluginutils": "^3.0.8",
         "commondir": "^1.0.1",
@@ -788,7 +788,7 @@
         },
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
diff --git a/package.json b/package.json
index b7da408..2cc0dd7 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   "author": "Simon McManus",
   "license": "MIT",
   "dependencies": {
-    "@rollup/plugin-commonjs": "^11.1.0",
+    "@rollup/plugin-commonjs": "^12.0.0",
     "@rollup/plugin-node-resolve": "^7.1.3",
     "async.map": "0.5.x",
     "async.parallel": "0.5.x",