diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 255097ef..385da08c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - master
-    pull_request:
+  pull_request:
 
 jobs:
   test:
@@ -21,12 +21,14 @@ jobs:
       - name: Set Node.js 10.x
         uses: actions/setup-node@master
         with:
-          version: 10.x
+          node-version: 10.x
 
       - name: npm install
         run: npm install
 
       - name: npm lint
+        # check style only once
+        if: matrix.operating-system == 'ubuntu-latest'
         run: npm run format-check
 
       - name: npm test
diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
index 55bb28f2..47bf198e 100644
--- a/__tests__/main.test.ts
+++ b/__tests__/main.test.ts
@@ -31,7 +31,7 @@ describe("installer tests", () => {
   });
 
   it("Downloads version of protoc if no matching version is installed", async () => {
-    await installer.getProtoc("3.9.0", true);
+    await installer.getProtoc("3.9.0", true, "");
     const protocDir = path.join(toolDir, "protoc", "3.9.0", os.arch());
 
     expect(fs.existsSync(`${protocDir}.complete`)).toBe(true);
@@ -58,7 +58,7 @@ describe("installer tests", () => {
     });
 
     it("Gets the latest 3.7.x version of protoc using 3.7 and no matching version is installed", async () => {
-      await installer.getProtoc("3.7", true);
+      await installer.getProtoc("3.7", true, "");
       const protocDir = path.join(toolDir, "protoc", "3.7.1", os.arch());
 
       expect(fs.existsSync(`${protocDir}.complete`)).toBe(true);
@@ -72,7 +72,7 @@ describe("installer tests", () => {
     }, 100000);
 
     it("Gets latest version of protoc using 3.x and no matching version is installed", async () => {
-      await installer.getProtoc("3.x", true);
+      await installer.getProtoc("3.x", true, "");
       const protocDir = path.join(toolDir, "protoc", "3.9.1", os.arch());
 
       expect(fs.existsSync(`${protocDir}.complete`)).toBe(true);
@@ -99,7 +99,7 @@ describe("installer tests", () => {
     });
 
     it("Gets latest version of protoc using 3.x with a broken rc tag, filtering pre-releases", async () => {
-      await installer.getProtoc("3.x", false);
+      await installer.getProtoc("3.x", false, "");
       const protocDir = path.join(toolDir, "protoc", "3.9.1", os.arch());
 
       expect(fs.existsSync(`${protocDir}.complete`)).toBe(true);
diff --git a/lib/installer.js b/lib/installer.js
index 412c1003..8894bcc2 100644
--- a/lib/installer.js
+++ b/lib/installer.js
@@ -44,20 +44,21 @@ const exc = __importStar(require("@actions/exec"));
 const io = __importStar(require("@actions/io"));
 let osPlat = os.platform();
 let osArch = os.arch();
-function getProtoc(version, includePreReleases) {
+function getProtoc(version, includePreReleases, repoToken) {
     return __awaiter(this, void 0, void 0, function* () {
         // resolve the version number
-        const targetVersion = yield computeVersion(version, includePreReleases);
+        const targetVersion = yield computeVersion(version, includePreReleases, repoToken);
         if (targetVersion) {
             version = targetVersion;
         }
+        process.stdout.write("Getting protoc version: " + version + os.EOL);
         // look if the binary is cached
         let toolPath;
         toolPath = tc.find("protoc", version);
         // if not: download, extract and cache
         if (!toolPath) {
             toolPath = yield downloadRelease(version);
-            core.debug("Protoc cached under " + toolPath);
+            process.stdout.write("Protoc cached under " + toolPath + os.EOL);
         }
         // add the bin folder to the PATH
         toolPath = path.join(toolPath, "bin");
@@ -89,6 +90,7 @@ function downloadRelease(version) {
         // Download
         let fileName = getFileName(version);
         let downloadUrl = util.format("https://github.com/protocolbuffers/protobuf/releases/download/%s/%s", version, fileName);
+        process.stdout.write("Downloading archive: " + downloadUrl + os.EOL);
         let downloadPath = null;
         try {
             downloadPath = yield tc.downloadTool(downloadUrl);
@@ -114,13 +116,23 @@ function getFileName(version) {
         return util.format("protoc-%s-win%s.zip", version, arch);
     }
     const arch = osArch == "x64" ? "x86_64" : "x86_32";
-    const filename = util.format("protoc-%s-linux-%s.zip", version, arch);
-    return filename;
+    if (osPlat == "darwin") {
+        return util.format("protoc-%s-osx-%s.zip", version, arch);
+    }
+    return util.format("protoc-%s-linux-%s.zip", version, arch);
 }
 // Retrieve a list of versions scraping tags from the Github API
-function fetchVersions(includePreReleases) {
+function fetchVersions(includePreReleases, repoToken) {
     return __awaiter(this, void 0, void 0, function* () {
-        let rest = new restm.RestClient("setup-protoc");
+        let rest;
+        if (repoToken != "") {
+            rest = new restm.RestClient("setup-protoc", "", [], {
+                headers: { Authorization: "Bearer " + repoToken }
+            });
+        }
+        else {
+            rest = new restm.RestClient("setup-protoc");
+        }
         let tags = (yield rest.get("https://api.github.com/repos/protocolbuffers/protobuf/releases")).result || [];
         return tags
             .filter(tag => tag.tag_name.match(/v\d+\.[\w\.]+/g))
@@ -129,7 +141,7 @@ function fetchVersions(includePreReleases) {
     });
 }
 // Compute an actual version starting from the `version` configuration param.
-function computeVersion(version, includePreReleases) {
+function computeVersion(version, includePreReleases, repoToken) {
     return __awaiter(this, void 0, void 0, function* () {
         // strip leading `v` char (will be re-added later)
         if (version.startsWith("v")) {
@@ -139,7 +151,7 @@ function computeVersion(version, includePreReleases) {
         if (version.endsWith(".x")) {
             version = version.slice(0, version.length - 2);
         }
-        const allVersions = yield fetchVersions(includePreReleases);
+        const allVersions = yield fetchVersions(includePreReleases, repoToken);
         const validVersions = allVersions.filter(v => semver.valid(v));
         const possibleVersions = validVersions.filter(v => v.startsWith(version));
         const versionMap = new Map();
@@ -195,10 +207,5 @@ function normalizeVersion(version) {
     return version;
 }
 function includePrerelease(isPrerelease, includePrereleases) {
-    if (!includePrereleases) {
-        if (isPrerelease) {
-            return false;
-        }
-    }
-    return true;
+    return includePrereleases || !isPrerelease;
 }
diff --git a/lib/main.js b/lib/main.js
index 5b7c5472..ef1dbd5c 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -22,7 +22,8 @@ function run() {
         try {
             let version = core.getInput("version");
             let includePreReleases = convertToBoolean(core.getInput("include-pre-releases"));
-            yield installer.getProtoc(version, includePreReleases);
+            let repoToken = core.getInput("repo-token");
+            yield installer.getProtoc(version, includePreReleases, repoToken);
         }
         catch (error) {
             core.setFailed(error.message);
diff --git a/package-lock.json b/package-lock.json
index c0c123ea..2fc0a746 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1135,9 +1135,9 @@
       }
     },
     "commander": {
-      "version": "2.20.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-      "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
+      "version": "2.20.3",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+      "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
       "dev": true,
       "optional": true
     },
@@ -2369,9 +2369,9 @@
       "dev": true
     },
     "handlebars": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
-      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
+      "version": "4.4.5",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.4.5.tgz",
+      "integrity": "sha512-0Ce31oWVB7YidkaTq33ZxEbN+UDxMMgThvCe8ptgQViymL5DPis9uLdTA13MiRPhgvqyxIegugrP97iK3JeBHg==",
       "dev": true,
       "requires": {
         "neo-async": "^2.6.0",
@@ -5089,13 +5089,13 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.0.tgz",
-      "integrity": "sha512-W+jrUHJr3DXKhrsS7NUVxn3zqMOFn0hL/Ei6v0anCIMoKC93TjcflTagwIHLW7SfMFfiQuktQyFVCFHGUE0+yg==",
+      "version": "3.6.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.3.tgz",
+      "integrity": "sha512-KfQUgOqTkLp2aZxrMbCuKCDGW9slFYu2A23A36Gs7sGzTLcRBDORdOi5E21KWHFIfkY8kzgi/Pr1cXCh0yIp5g==",
       "dev": true,
       "optional": true,
       "requires": {
-        "commander": "~2.20.0",
+        "commander": "~2.20.3",
         "source-map": "~0.6.1"
       }
     },
diff --git a/src/installer.ts b/src/installer.ts
index 26866a0a..0487d6d3 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -35,12 +35,21 @@ interface IProtocRelease {
   prerelease: boolean;
 }
 
-export async function getProtoc(version: string, includePreReleases: boolean) {
+export async function getProtoc(
+  version: string,
+  includePreReleases: boolean,
+  repoToken: string
+) {
   // resolve the version number
-  const targetVersion = await computeVersion(version, includePreReleases);
+  const targetVersion = await computeVersion(
+    version,
+    includePreReleases,
+    repoToken
+  );
   if (targetVersion) {
     version = targetVersion;
   }
+  process.stdout.write("Getting protoc version: " + version + os.EOL);
 
   // look if the binary is cached
   let toolPath: string;
@@ -49,7 +58,7 @@ export async function getProtoc(version: string, includePreReleases: boolean) {
   // if not: download, extract and cache
   if (!toolPath) {
     toolPath = await downloadRelease(version);
-    core.debug("Protoc cached under " + toolPath);
+    process.stdout.write("Protoc cached under " + toolPath + os.EOL);
   }
 
   // add the bin folder to the PATH
@@ -88,6 +97,8 @@ async function downloadRelease(version: string): Promise<string> {
     version,
     fileName
   );
+  process.stdout.write("Downloading archive: " + downloadUrl + os.EOL);
+
   let downloadPath: string | null = null;
   try {
     downloadPath = await tc.downloadTool(downloadUrl);
@@ -125,8 +136,19 @@ function getFileName(version: string): string {
 }
 
 // Retrieve a list of versions scraping tags from the Github API
-async function fetchVersions(includePreReleases: boolean): Promise<string[]> {
-  let rest: restm.RestClient = new restm.RestClient("setup-protoc");
+async function fetchVersions(
+  includePreReleases: boolean,
+  repoToken: string
+): Promise<string[]> {
+  let rest: restm.RestClient;
+  if (repoToken != "") {
+    rest = new restm.RestClient("setup-protoc", "", [], {
+      headers: { Authorization: "Bearer " + repoToken }
+    });
+  } else {
+    rest = new restm.RestClient("setup-protoc");
+  }
+
   let tags: IProtocRelease[] =
     (await rest.get<IProtocRelease[]>(
       "https://api.github.com/repos/protocolbuffers/protobuf/releases"
@@ -141,7 +163,8 @@ async function fetchVersions(includePreReleases: boolean): Promise<string[]> {
 // Compute an actual version starting from the `version` configuration param.
 async function computeVersion(
   version: string,
-  includePreReleases: boolean
+  includePreReleases: boolean,
+  repoToken: string
 ): Promise<string> {
   // strip leading `v` char (will be re-added later)
   if (version.startsWith("v")) {
@@ -153,7 +176,7 @@ async function computeVersion(
     version = version.slice(0, version.length - 2);
   }
 
-  const allVersions = await fetchVersions(includePreReleases);
+  const allVersions = await fetchVersions(includePreReleases, repoToken);
   const validVersions = allVersions.filter(v => semver.valid(v));
   const possibleVersions = validVersions.filter(v => v.startsWith(version));
 
diff --git a/src/main.ts b/src/main.ts
index 8b9d5903..b70341a4 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -7,7 +7,8 @@ async function run() {
     let includePreReleases = convertToBoolean(
       core.getInput("include-pre-releases")
     );
-    await installer.getProtoc(version, includePreReleases);
+    let repoToken = core.getInput("repo-token");
+    await installer.getProtoc(version, includePreReleases, repoToken);
   } catch (error) {
     core.setFailed(error.message);
   }