diff --git a/README.md b/README.md
index 27f595b..ed2e073 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,6 @@ steps:
     version: '8.x'
 - uses: subosito/flutter-action@master
   with:
-    version: 'v1.7.8+hotfix.4'
+    version: '1.7.8+hotfix.4'
 - run: flutter build apk
 ```
diff --git a/__tests__/installer.test.ts b/__tests__/installer.test.ts
index 1532191..87ae70d 100644
--- a/__tests__/installer.test.ts
+++ b/__tests__/installer.test.ts
@@ -26,7 +26,7 @@ describe('installer tests', () => {
   }, 100000);
 
   it('Downloads flutter', async () => {
-    await installer.getFlutter('v1.7.8+hotfix.4', 'stable');
+    await installer.getFlutter('1.7.8+hotfix.4', 'stable');
     const sdkDir = path.join(toolDir, 'Flutter', '1.7.8', 'x64');
 
     expect(fs.existsSync(`${sdkDir}.complete`)).toBe(true);
@@ -34,7 +34,7 @@ describe('installer tests', () => {
   }, 100000);
 
   it('Downloads flutter from beta channel', async () => {
-    await installer.getFlutter('v1.8.3', 'beta');
+    await installer.getFlutter('1.8.3', 'beta');
     const sdkDir = path.join(toolDir, 'Flutter', '1.8.3', 'x64');
 
     expect(fs.existsSync(`${sdkDir}.complete`)).toBe(true);
diff --git a/lib/installer.js b/lib/installer.js
index 0150be1..0f2ad03 100644
--- a/lib/installer.js
+++ b/lib/installer.js
@@ -57,7 +57,7 @@ function getFlutter(version, channel) {
             let tempDir = generateTempDir();
             const sdkDir = yield extractDownload(sdkFile, tempDir);
             core.debug(`Flutter sdk extracted to ${sdkDir}`);
-            toolPath = yield tc.cacheDir(sdkDir, 'Flutter', `${version}-${channel}`);
+            toolPath = yield tc.cacheDir(sdkDir, 'Flutter', version);
         }
         core.exportVariable('FLUTTER_HOME', toolPath);
         core.addPath(path.join(toolPath, 'bin'));
@@ -79,7 +79,7 @@ function extName() {
 function getDownloadInfo(version, channel) {
     const os = osName();
     const ext = extName();
-    const url = `https://storage.googleapis.com/flutter_infra/releases/${channel}/${os}/flutter_${os}_${version}-${channel}.${ext}`;
+    const url = `https://storage.googleapis.com/flutter_infra/releases/${channel}/${os}/flutter_${os}_v${version}-${channel}.${ext}`;
     return {
         version,
         url
diff --git a/src/installer.ts b/src/installer.ts
index 8b05e66..4cec2b8 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -46,7 +46,7 @@ export async function getFlutter(
     const sdkDir = await extractDownload(sdkFile, tempDir);
     core.debug(`Flutter sdk extracted to ${sdkDir}`);
 
-    toolPath = await tc.cacheDir(sdkDir, 'Flutter', `${version}-${channel}`);
+    toolPath = await tc.cacheDir(sdkDir, 'Flutter', version);
   }
 
   core.exportVariable('FLUTTER_HOME', toolPath);
@@ -72,7 +72,7 @@ function getDownloadInfo(
 ): {version: string; url: string} {
   const os = osName();
   const ext = extName();
-  const url = `https://storage.googleapis.com/flutter_infra/releases/${channel}/${os}/flutter_${os}_${version}-${channel}.${ext}`;
+  const url = `https://storage.googleapis.com/flutter_infra/releases/${channel}/${os}/flutter_${os}_v${version}-${channel}.${ext}`;
 
   return {
     version,