diff --git a/package-lock.json b/package-lock.json
index 0f1c898..e1bebcc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "serverless-plugin-git-variables",
-  "version": "5.1.0",
+  "version": "5.2.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "serverless-plugin-git-variables",
-      "version": "5.1.0",
+      "version": "5.2.0",
       "license": "MIT",
       "devDependencies": {
         "@ava/babel": "1.0.1",
@@ -16,7 +16,6 @@
         "@babel/register": "7.12.1",
         "ava": "3.15.0",
         "babel-plugin-add-module-exports": "1.0.4",
-        "coveralls": "3.1.0",
         "cross-env": "7.0.2",
         "eslint": "7.12.1",
         "eslint-config-standard": "16.0.1",
@@ -33,6 +32,9 @@
       },
       "engines": {
         "node": ">=12.0"
+      },
+      "peerDependencies": {
+        "serverless": ">=1.16.0"
       }
     },
     "node_modules/@ava/babel": {
@@ -5697,9 +5699,9 @@
       }
     },
     "node_modules/cookiejar": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.3.tgz",
-      "integrity": "sha512-JxbCBUdrfr6AQjOXrxoTvAMJO4HBTUIlBzslcJPAz+/KT8yk53fXun51u+RenNYvad/+Vc2DIz5o9UxlCDymFQ==",
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.4.tgz",
+      "integrity": "sha512-LDx6oHrK+PhzLKJU9j5S7/Y3jM/mUHvD/DeI1WQmJn652iPC5Y4TBzC9l+5OMOXlyTTA+SmVUPm0HQUwpD5Jqw==",
       "dev": true
     },
     "node_modules/copy-descriptor": {
@@ -5762,38 +5764,6 @@
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
       "dev": true
     },
-    "node_modules/coveralls": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/coveralls/-/coveralls-3.1.0.tgz",
-      "integrity": "sha512-sHxOu2ELzW8/NC1UP5XVLbZDzO4S3VxfFye3XYCznopHy02YjNkHcj5bKaVw2O7hVaBdBjEdQGpie4II1mWhuQ==",
-      "dev": true,
-      "dependencies": {
-        "js-yaml": "^3.13.1",
-        "lcov-parse": "^1.0.0",
-        "log-driver": "^1.2.7",
-        "minimist": "^1.2.5",
-        "request": "^2.88.2"
-      },
-      "bin": {
-        "coveralls": "bin/coveralls.js"
-      },
-      "engines": {
-        "node": ">=6"
-      }
-    },
-    "node_modules/coveralls/node_modules/js-yaml": {
-      "version": "3.14.1",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.1.tgz",
-      "integrity": "sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==",
-      "dev": true,
-      "dependencies": {
-        "argparse": "^1.0.7",
-        "esprima": "^4.0.0"
-      },
-      "bin": {
-        "js-yaml": "bin/js-yaml.js"
-      }
-    },
     "node_modules/crc-32": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.0.tgz",
@@ -10005,15 +9975,6 @@
         "node": ">= 0.6.3"
       }
     },
-    "node_modules/lcov-parse": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/lcov-parse/-/lcov-parse-1.0.0.tgz",
-      "integrity": "sha1-6w1GtUER68VhrLTECO+TY73I9+A=",
-      "dev": true,
-      "bin": {
-        "lcov-parse": "bin/cli.js"
-      }
-    },
     "node_modules/levn": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/levn/-/levn-0.4.1.tgz",
@@ -10148,15 +10109,6 @@
         "uni-global": "^1.0.0"
       }
     },
-    "node_modules/log-driver": {
-      "version": "1.2.7",
-      "resolved": "https://registry.npmjs.org/log-driver/-/log-driver-1.2.7.tgz",
-      "integrity": "sha512-U7KCmLdqsGHBLeWqYlFA0V0Sl6P08EE1ZrmA9cxjUE0WVqT9qnyVDPz1kzpFEP0jdJuFnasWIfSd7fsaNXkpbg==",
-      "dev": true,
-      "engines": {
-        "node": ">=0.8.6"
-      }
-    },
     "node_modules/log-node": {
       "version": "8.0.2",
       "resolved": "https://registry.npmjs.org/log-node/-/log-node-8.0.2.tgz",
@@ -20265,9 +20217,9 @@
       "dev": true
     },
     "cookiejar": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.3.tgz",
-      "integrity": "sha512-JxbCBUdrfr6AQjOXrxoTvAMJO4HBTUIlBzslcJPAz+/KT8yk53fXun51u+RenNYvad/+Vc2DIz5o9UxlCDymFQ==",
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.4.tgz",
+      "integrity": "sha512-LDx6oHrK+PhzLKJU9j5S7/Y3jM/mUHvD/DeI1WQmJn652iPC5Y4TBzC9l+5OMOXlyTTA+SmVUPm0HQUwpD5Jqw==",
       "dev": true
     },
     "copy-descriptor": {
@@ -20317,31 +20269,6 @@
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
       "dev": true
     },
-    "coveralls": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/coveralls/-/coveralls-3.1.0.tgz",
-      "integrity": "sha512-sHxOu2ELzW8/NC1UP5XVLbZDzO4S3VxfFye3XYCznopHy02YjNkHcj5bKaVw2O7hVaBdBjEdQGpie4II1mWhuQ==",
-      "dev": true,
-      "requires": {
-        "js-yaml": "^3.13.1",
-        "lcov-parse": "^1.0.0",
-        "log-driver": "^1.2.7",
-        "minimist": "^1.2.5",
-        "request": "^2.88.2"
-      },
-      "dependencies": {
-        "js-yaml": {
-          "version": "3.14.1",
-          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.1.tgz",
-          "integrity": "sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==",
-          "dev": true,
-          "requires": {
-            "argparse": "^1.0.7",
-            "esprima": "^4.0.0"
-          }
-        }
-      }
-    },
     "crc-32": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.0.tgz",
@@ -23641,12 +23568,6 @@
         "readable-stream": "^2.0.5"
       }
     },
-    "lcov-parse": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/lcov-parse/-/lcov-parse-1.0.0.tgz",
-      "integrity": "sha1-6w1GtUER68VhrLTECO+TY73I9+A=",
-      "dev": true
-    },
     "levn": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/levn/-/levn-0.4.1.tgz",
@@ -23769,12 +23690,6 @@
         "uni-global": "^1.0.0"
       }
     },
-    "log-driver": {
-      "version": "1.2.7",
-      "resolved": "https://registry.npmjs.org/log-driver/-/log-driver-1.2.7.tgz",
-      "integrity": "sha512-U7KCmLdqsGHBLeWqYlFA0V0Sl6P08EE1ZrmA9cxjUE0WVqT9qnyVDPz1kzpFEP0jdJuFnasWIfSd7fsaNXkpbg==",
-      "dev": true
-    },
     "log-node": {
       "version": "8.0.2",
       "resolved": "https://registry.npmjs.org/log-node/-/log-node-8.0.2.tgz",