diff --git a/dist/index.js b/dist/index.js
index 6930f96..a9ab546 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1902,6 +1902,19 @@ class HttpClientResponse {
             }));
         });
     }
+    readBodyBuffer() {
+        return __awaiter(this, void 0, void 0, function* () {
+            return new Promise((resolve) => __awaiter(this, void 0, void 0, function* () {
+                const chunks = [];
+                this.message.on('data', (chunk) => {
+                    chunks.push(chunk);
+                });
+                this.message.on('end', () => {
+                    resolve(Buffer.concat(chunks));
+                });
+            }));
+        });
+    }
 }
 exports.HttpClientResponse = HttpClientResponse;
 function isHttps(requestUrl) {
@@ -2406,7 +2419,13 @@ function getProxyUrl(reqUrl) {
         }
     })();
     if (proxyVar) {
-        return new URL(proxyVar);
+        try {
+            return new URL(proxyVar);
+        }
+        catch (_a) {
+            if (!proxyVar.startsWith('http://') && !proxyVar.startsWith('https://'))
+                return new URL(`http://${proxyVar}`);
+        }
     }
     else {
         return undefined;
diff --git a/package-lock.json b/package-lock.json
index b463a02..b0c9373 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@actions/core": "^1.10.0",
         "@actions/github": "^5.1.1",
-        "@actions/http-client": "^2.1.0",
+        "@actions/http-client": "^2.1.1",
         "nock": "^13.3.2"
       },
       "devDependencies": {
@@ -47,9 +47,9 @@
       }
     },
     "node_modules/@actions/http-client": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.1.0.tgz",
-      "integrity": "sha512-BonhODnXr3amchh4qkmjPMUO8mFi/zLaaCeCAJZqch8iQqyDnVIkySjB38VHAC8IJ+bnlgfOqlhpyCUZHlQsqw==",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.1.1.tgz",
+      "integrity": "sha512-qhrkRMB40bbbLo7gF+0vu+X+UawOvQQqNAA/5Unx774RS8poaOhThDOG6BGmxvAnxhQnDp2BG/ZUm65xZILTpw==",
       "dependencies": {
         "tunnel": "^0.0.6"
       }
@@ -4463,9 +4463,9 @@
       }
     },
     "@actions/http-client": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.1.0.tgz",
-      "integrity": "sha512-BonhODnXr3amchh4qkmjPMUO8mFi/zLaaCeCAJZqch8iQqyDnVIkySjB38VHAC8IJ+bnlgfOqlhpyCUZHlQsqw==",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.1.1.tgz",
+      "integrity": "sha512-qhrkRMB40bbbLo7gF+0vu+X+UawOvQQqNAA/5Unx774RS8poaOhThDOG6BGmxvAnxhQnDp2BG/ZUm65xZILTpw==",
       "requires": {
         "tunnel": "^0.0.6"
       }
diff --git a/package.json b/package.json
index 658479f..05cd572 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   "dependencies": {
     "@actions/core": "^1.10.0",
     "@actions/github": "^5.1.1",
-    "@actions/http-client": "^2.1.0",
+    "@actions/http-client": "^2.1.1",
     "nock": "^13.3.2"
   },
   "devDependencies": {