diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0bf7c92..edfc5e8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,6 +20,6 @@ jobs:
         with:
           node-version: 18.x
 
-      - run: npx githublogen
+      - run: npx githublogen@latest
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
diff --git a/src/markdown.ts b/src/markdown.ts
index 8566fc0..40b671f 100644
--- a/src/markdown.ts
+++ b/src/markdown.ts
@@ -110,7 +110,14 @@ function createContributorLine(contributors: ResolvedAuthor[]) {
   let loginLine = '';
   let unLoginLine = '';
 
-  contributors.forEach((contributor, index) => {
+  const contributorMap = new Map<string, ResolvedAuthor>();
+  contributors.forEach(contributor => {
+    contributorMap.set(contributor.email, contributor);
+  });
+
+  const filteredContributors = Array.from(contributorMap.values());
+
+  filteredContributors.forEach((contributor, index) => {
     const { name, email, login } = contributor;
 
     if (!login) {