diff --git a/dist/setup/index.js b/dist/setup/index.js
index 284fea0..015e4ca 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -72811,7 +72811,15 @@ exports.listSdks = listSdks;
  * correct version number like '3.1.201', '3.1.201', '3.1.201', '3.1.201', '6.0.402'
  */
 const matchVersionToList = (version, versions) => {
-    const versionRegex = new RegExp(`^${version.replace(/x/g, '\\d+')}`);
+    if (!version || version === 'x' || version === '*') {
+        return versions.at(0);
+    }
+    const versionArray = version.split('.');
+    if (versionArray.length < 3) {
+        versionArray.push(...Array(3 - versionArray.length).fill('x'));
+    }
+    const normalizedVersion = versionArray.join('.');
+    const versionRegex = new RegExp(`^${normalizedVersion.replace(/x/g, '\\d+')}`);
     const matchedVersion = versions.find(v => versionRegex.test(v));
     return matchedVersion;
 };
diff --git a/src/dotnet-utils.ts b/src/dotnet-utils.ts
index 6ba1297..8a44369 100644
--- a/src/dotnet-utils.ts
+++ b/src/dotnet-utils.ts
@@ -28,7 +28,21 @@ export const listSdks = async () => {
  * correct version number like '3.1.201', '3.1.201', '3.1.201', '3.1.201', '6.0.402'
  */
 export const matchVersionToList = (version: string, versions: string[]) => {
-  const versionRegex = new RegExp(`^${version.replace(/x/g, '\\d+')}`);
+  if (!version || version === 'x' || version === '*') {
+    return versions.at(0);
+  }
+
+  const versionArray = version.split('.');
+
+  if (versionArray.length < 3) {
+    versionArray.push(...Array(3 - versionArray.length).fill('x'));
+  }
+
+  const normalizedVersion = versionArray.join('.');
+
+  const versionRegex = new RegExp(
+    `^${normalizedVersion.replace(/x/g, '\\d+')}`
+  );
   const matchedVersion = versions.find(v => versionRegex.test(v));
 
   return matchedVersion;