diff --git a/dist/index.js b/dist/index.js
index e516c4f..2090549 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -3879,7 +3879,9 @@ async function getChangesSinceMergeBase(base, ref, initialFetchDepth) {
             if (baseRef === undefined) {
                 baseRef = await getFullRef(base);
                 if (baseRef === undefined) {
-                    await exec_1.default('git', ['fetch', '--tags', `--depth=1`, 'origin', base, ref]);
+                    await exec_1.default('git', ['fetch', '--tags', '--depth=1', 'origin', base, ref], {
+                        ignoreReturnCode: true // returns exit code 1 if tags on remote were updated - we can safely ignore it
+                    });
                     baseRef = await getFullRef(base);
                     if (baseRef === undefined) {
                         throw new Error(`Could not determine what is ${base} - fetch works but it's not a branch or tag`);
diff --git a/src/git.ts b/src/git.ts
index 97a4021..ca652e8 100644
--- a/src/git.ts
+++ b/src/git.ts
@@ -71,7 +71,9 @@ export async function getChangesSinceMergeBase(base: string, ref: string, initia
       if (baseRef === undefined) {
         baseRef = await getFullRef(base)
         if (baseRef === undefined) {
-          await exec('git', ['fetch', '--tags', `--depth=1`, 'origin', base, ref])
+          await exec('git', ['fetch', '--tags', '--depth=1', 'origin', base, ref], {
+            ignoreReturnCode: true // returns exit code 1 if tags on remote were updated - we can safely ignore it
+          })
           baseRef = await getFullRef(base)
           if (baseRef === undefined) {
             throw new Error(`Could not determine what is ${base} - fetch works but it's not a branch or tag`)