diff --git a/packages/js/src/executors/release-publish/release-publish.impl.ts b/packages/js/src/executors/release-publish/release-publish.impl.ts
index a15f813b9a715..91c3b08b38109 100644
--- a/packages/js/src/executors/release-publish/release-publish.impl.ts
+++ b/packages/js/src/executors/release-publish/release-publish.impl.ts
@@ -110,7 +110,12 @@ export default async function runExecutor(
         };
       }
 
-      if (resultJson.versions.includes(currentVersion)) {
+      // If only one version of a package exists in the registry, versions will be a string instead of an array.
+      const versions = Array.isArray(resultJson.versions)
+        ? resultJson.versions
+        : [resultJson.versions];
+
+      if (versions.includes(currentVersion)) {
         try {
           if (!isDryRun) {
             execSync(npmDistTagAddCommandSegments.join(' '), {