diff --git a/.github/workflows/release-new-action-version.yml b/.github/workflows/release-new-action-version.yml
index e72733e..6ef9f1e 100644
--- a/.github/workflows/release-new-action-version.yml
+++ b/.github/workflows/release-new-action-version.yml
@@ -26,3 +26,4 @@ jobs:
       with:
         source-tag: ${{ env.TAG_NAME }}
         slack-webhook: ${{ secrets.SLACK_WEBHOOK }}
+        
\ No newline at end of file
diff --git a/dist/index.js b/dist/index.js
index 5baa561..1c451ee 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -212,7 +212,7 @@ class DotnetVersionResolver {
     }
     resolveVersionInput() {
         return __awaiter(this, void 0, void 0, function* () {
-            if (!this.isValidVersion(this.inputVersion)) {
+            if (!semver_1.default.validRange(this.inputVersion)) {
                 throw new Error(`'dotnet-version' was supplied in invalid format: ${this.inputVersion}! Supported syntax: A.B.C, A.B, A.B.x, A, A.x`);
             }
             if (semver_1.default.valid(this.inputVersion)) {
@@ -238,9 +238,6 @@ class DotnetVersionResolver {
             }
         });
     }
-    isValidVersion(version) {
-        return semver_1.default.valid(version) || semver_1.default.validRange(version) ? true : false;
-    }
     isNumericTag(versionTag) {
         return /^\d+$/.test(versionTag);
     }
@@ -358,7 +355,8 @@ class DotnetCoreInstaller {
                 }
                 scriptArguments.push(`-InstallDir '${DotnetCoreInstaller.installationDirectoryWindows}'`);
                 // process.env must be explicitly passed in for DOTNET_INSTALL_DIR to be used
-                scriptPath = yield io.which('powershell', true);
+                scriptPath =
+                    (yield io.which('powershell', false)) || (yield io.which('pwsh', true));
                 scriptArguments = [...windowsDefaultOptions, scriptArguments.join(' ')];
             }
             else {
diff --git a/src/installer.ts b/src/installer.ts
index 8f3b16c..116cc5a 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -42,7 +42,7 @@ export class DotnetVersionResolver {
   }
 
   private async resolveVersionInput(): Promise<void> {
-    if (!this.isValidVersion(this.inputVersion)) {
+    if (!semver.validRange(this.inputVersion)) {
       throw new Error(
         `'dotnet-version' was supplied in invalid format: ${this.inputVersion}! Supported syntax: A.B.C, A.B, A.B.x, A, A.x`
       );
@@ -72,10 +72,6 @@ export class DotnetVersionResolver {
     }
   }
 
-  private isValidVersion(version) {
-    return semver.valid(version) || semver.validRange(version) ? true : false;
-  }
-
   private isNumericTag(versionTag): Boolean {
     return /^\d+$/.test(versionTag);
   }
@@ -237,7 +233,8 @@ export class DotnetCoreInstaller {
         `-InstallDir '${DotnetCoreInstaller.installationDirectoryWindows}'`
       );
       // process.env must be explicitly passed in for DOTNET_INSTALL_DIR to be used
-      scriptPath = await io.which('powershell', true);
+      scriptPath =
+        (await io.which('powershell', false)) || (await io.which('pwsh', true));
       scriptArguments = [...windowsDefaultOptions, scriptArguments.join(' ')];
     } else {
       chmodSync(escapedScript, '777');