diff --git a/dist/index.js b/dist/index.js
index 9201fa3c..79f47623 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1262,17 +1262,24 @@ module.exports = require("assert");
 
 "use strict";
 
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
 Object.defineProperty(exports, "__esModule", { value: true });
-const os = __webpack_require__(87);
+const os = __importStar(__webpack_require__(87));
 /**
  * Commands
  *
  * Command Format:
- *   ##[name key=value;key=value]message
+ *   ::name key=value,key=value::message
  *
  * Examples:
- *   ##[warning]This is the user warning message
- *   ##[set-secret name=mypassword]definitelyNotAPassword!
+ *   ::warning::This is the message
+ *   ::set-env name=MY_VAR::some value
  */
 function issueCommand(command, properties, message) {
     const cmd = new Command(command, properties, message);
@@ -1308,30 +1315,28 @@ class Command {
                         else {
                             cmdStr += ',';
                         }
-                        // safely append the val - avoid blowing up when attempting to
-                        // call .replace() if message is not a string for some reason
-                        cmdStr += `${key}=${escape(`${val || ''}`)}`;
+                        cmdStr += `${key}=${escapeProperty(val)}`;
                     }
                 }
             }
         }
-        cmdStr += CMD_STRING;
-        // safely append the message - avoid blowing up when attempting to
-        // call .replace() if message is not a string for some reason
-        const message = `${this.message || ''}`;
-        cmdStr += escapeData(message);
+        cmdStr += `${CMD_STRING}${escapeData(this.message)}`;
         return cmdStr;
     }
 }
 function escapeData(s) {
-    return s.replace(/\r/g, '%0D').replace(/\n/g, '%0A');
+    return (s || '')
+        .replace(/%/g, '%25')
+        .replace(/\r/g, '%0D')
+        .replace(/\n/g, '%0A');
 }
-function escape(s) {
-    return s
+function escapeProperty(s) {
+    return (s || '')
+        .replace(/%/g, '%25')
         .replace(/\r/g, '%0D')
         .replace(/\n/g, '%0A')
-        .replace(/]/g, '%5D')
-        .replace(/;/g, '%3B');
+        .replace(/:/g, '%3A')
+        .replace(/,/g, '%2C');
 }
 //# sourceMappingURL=command.js.map
 
@@ -1351,10 +1356,17 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
 Object.defineProperty(exports, "__esModule", { value: true });
 const command_1 = __webpack_require__(431);
-const os = __webpack_require__(87);
-const path = __webpack_require__(622);
+const os = __importStar(__webpack_require__(87));
+const path = __importStar(__webpack_require__(622));
 /**
  * The code to exit an action
  */
diff --git a/package-lock.json b/package-lock.json
index fc15eb5a..215a683c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,13 +1,13 @@
 {
   "name": "setup-php",
-  "version": "1.7.4",
+  "version": "1.8.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
     "@actions/core": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.1.tgz",
-      "integrity": "sha512-xD+CQd9p4lU7ZfRqmUcbJpqR+Ss51rJRVeXMyOLrZQImN9/8Sy/BEUBnHO/UKD3z03R686PVTLfEPmkropGuLw=="
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.2.tgz",
+      "integrity": "sha512-IbCx7oefq+Gi6FWbSs2Fnw8VkEI6Y4gvjrYprY3RV//ksq/KPMlClOerJ4jRosyal6zkUIc8R9fS/cpRMlGClg=="
     },
     "@actions/exec": {
       "version": "1.0.3",
@@ -710,9 +710,9 @@
       }
     },
     "@types/jest": {
-      "version": "24.9.0",
-      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-24.9.0.tgz",
-      "integrity": "sha512-dXvuABY9nM1xgsXlOtLQXJKdacxZJd7AtvLsKZ/0b57ruMXDKCOXAC/M75GbllQX6o1pcZ5hAG4JzYy7Z/wM2w==",
+      "version": "24.9.1",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-24.9.1.tgz",
+      "integrity": "sha512-Fb38HkXSVA4L8fGKEZ6le5bB8r6MRWlOCZbVuWZcmOMSCd2wCYOwN1ibj8daIoV9naq7aaOZjrLCoCMptKU/4Q==",
       "dev": true,
       "requires": {
         "jest-diff": "^24.3.0"
@@ -743,9 +743,9 @@
       "dev": true
     },
     "@types/yargs": {
-      "version": "13.0.5",
-      "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-13.0.5.tgz",
-      "integrity": "sha512-CF/+sxTO7FOwbIRL4wMv0ZYLCRfMid2HQpzDRyViH7kSpfoAFiMdGqKIxb1PxWfjtQXQhnQuD33lvRHNwr809Q==",
+      "version": "13.0.6",
+      "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-13.0.6.tgz",
+      "integrity": "sha512-IkltIncDQWv6fcAvnHtJ6KtkmY/vtR3bViOaCzpj/A3yNhlfZAgxNe6AEQD1cQrkYD+YsKVo08DSxvNKEsD7BA==",
       "dev": true,
       "requires": {
         "@types/yargs-parser": "*"
@@ -3514,9 +3514,9 @@
       "dev": true
     },
     "inquirer": {
-      "version": "7.0.3",
-      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-7.0.3.tgz",
-      "integrity": "sha512-+OiOVeVydu4hnCGLCSX+wedovR/Yzskv9BFqUNNKq9uU2qg7LCcCo3R86S2E7WLo0y/x2pnEZfZe1CoYnORUAw==",
+      "version": "7.0.4",
+      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-7.0.4.tgz",
+      "integrity": "sha512-Bu5Td5+j11sCkqfqmUTiwv+tWisMtP0L7Q8WrqA2C/BbBhy1YTdFrvjjlrKq8oagA/tLQBski2Gcx/Sqyi2qSQ==",
       "dev": true,
       "requires": {
         "ansi-escapes": "^4.2.1",
@@ -5636,9 +5636,9 @@
       "dev": true
     },
     "resolve": {
-      "version": "1.14.2",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.14.2.tgz",
-      "integrity": "sha512-EjlOBLBO1kxsUxsKjLt7TAECyKW6fOh1VRkykQkKGzcBbjjPIxBqGh0jf7GJ3k/f5mxMqW3htMD3WdTUVtW8HQ==",
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.15.0.tgz",
+      "integrity": "sha512-+hTmAldEGE80U2wJJDC1lebb5jWqvTYAfm3YZ1ckk1gBr0MnCqUKlwK1e+anaFljIl+F5tR5IoZcm4ZDA1zMQw==",
       "dev": true,
       "requires": {
         "path-parse": "^1.0.6"
diff --git a/package.json b/package.json
index 45eb3beb..c5610698 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "setup-php",
-  "version": "1.7.4",
+  "version": "1.8.0",
   "private": false,
   "description": "Setup PHP for use with GitHub Actions",
   "main": "dist/index.js",