diff --git a/dist/index.js b/dist/index.js
index 798d6b7..8bc520a 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -901,6 +901,7 @@ class GitHubHelper {
         if (token) {
             options.auth = `${token}`;
         }
+        options.baseUrl = process.env['GITHUB_API_URL'] || 'https://api.github.com';
         this.octokit = new octokit_client_1.Octokit(options);
     }
     parseRepository(repository) {
@@ -1157,8 +1158,13 @@ exports.getRepoPath = getRepoPath;
 function getRemoteDetail(remoteUrl) {
     // Parse the protocol and github repository from a URL
     // e.g. HTTPS, peter-evans/create-pull-request
-    const httpsUrlPattern = /^https:\/\/.*@?github.com\/(.+\/.+)$/i;
-    const sshUrlPattern = /^git@github.com:(.+\/.+).git$/i;
+    const githubUrl = process.env['GITHUB_SERVER_URL'] || 'https://github.com';
+    const githubServerMatch = githubUrl.match(/^https?:\/\/(.+)$/i);
+    if (!githubServerMatch) {
+        throw new Error('Could not parse GitHub Server name');
+    }
+    const httpsUrlPattern = new RegExp('^https?://.*@?' + githubServerMatch[1] + '/(.+/.+)$', 'i');
+    const sshUrlPattern = new RegExp('^git@' + githubServerMatch[1] + ':(.+/.+).git$', 'i');
     const httpsMatch = remoteUrl.match(httpsUrlPattern);
     if (httpsMatch) {
         return {
diff --git a/src/github-helper.ts b/src/github-helper.ts
index f031230..db8e015 100644
--- a/src/github-helper.ts
+++ b/src/github-helper.ts
@@ -23,6 +23,7 @@ export class GitHubHelper {
     if (token) {
       options.auth = `${token}`
     }
+    options.baseUrl = process.env['GITHUB_API_URL'] || 'https://api.github.com'
     this.octokit = new Octokit(options)
   }
 
diff --git a/src/utils.ts b/src/utils.ts
index 8b1fde1..4659b04 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -39,8 +39,21 @@ interface RemoteDetail {
 export function getRemoteDetail(remoteUrl: string): RemoteDetail {
   // Parse the protocol and github repository from a URL
   // e.g. HTTPS, peter-evans/create-pull-request
-  const httpsUrlPattern = /^https:\/\/.*@?github.com\/(.+\/.+)$/i
-  const sshUrlPattern = /^git@github.com:(.+\/.+).git$/i
+  const githubUrl = process.env['GITHUB_SERVER_URL'] || 'https://github.com'
+
+  const githubServerMatch = githubUrl.match(/^https?:\/\/(.+)$/i)
+  if (!githubServerMatch) {
+    throw new Error('Could not parse GitHub Server name')
+  }
+
+  const httpsUrlPattern = new RegExp(
+    '^https?://.*@?' + githubServerMatch[1] + '/(.+/.+)$',
+    'i'
+  )
+  const sshUrlPattern = new RegExp(
+    '^git@' + githubServerMatch[1] + ':(.+/.+).git$',
+    'i'
+  )
 
   const httpsMatch = remoteUrl.match(httpsUrlPattern)
   if (httpsMatch) {