diff --git a/plugins/gitea-sync/index.js b/plugins/gitea-sync/index.js
index a6aed23..f247a52 100644
--- a/plugins/gitea-sync/index.js
+++ b/plugins/gitea-sync/index.js
@@ -182,13 +182,25 @@ async function syncRepos(ctx) {
       const releaseKey = `${repo.fullName}:${release.id}`;
       if (imported.has(releaseKey)) continue;
 
+      const title = `${titleCase(repo.name)} ${release.name}`;
+
+      // check if this changelog already exists in the database
+      const exists = await ctx.prisma.changelogEntry.findFirst({
+        where: { title, boardId: board.id },
+        select: { id: true },
+      });
+      if (exists) {
+        imported.add(releaseKey);
+        continue;
+      }
+
       const body = release.body
         ? `${release.body}\n\n[View release](${release.htmlUrl})`
         : `[View release](${release.htmlUrl})`;
 
       await ctx.prisma.changelogEntry.create({
         data: {
-          title: `${titleCase(repo.name)} ${release.name}`,
+          title,
           body,
           boardId: board.id,
           publishedAt: new Date(release.publishedAt),