diff --git a/.changeset/sharp-pens-matter.md b/.changeset/sharp-pens-matter.md
new file mode 100644
index 00000000..aba14c64
--- /dev/null
+++ b/.changeset/sharp-pens-matter.md
@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Add `is:pull-request` to search query when looking for existing PR. This fixes an issue with user-owned PATs.
diff --git a/src/run.ts b/src/run.ts
index 2612393f..ac3b24dc 100644
--- a/src/run.ts
+++ b/src/run.ts
@@ -291,7 +291,7 @@ export async function runVersion({
     });
   }
 
-  let searchQuery = `repo:${repo}+state:open+head:${versionBranch}+base:${branch}`;
+  let searchQuery = `repo:${repo}+state:open+head:${versionBranch}+base:${branch}+is:pull-request`;
   let searchResultPromise = octokit.search.issuesAndPullRequests({
     q: searchQuery,
   });