diff --git a/github-actions/commit-message-based-labels/main.js b/github-actions/commit-message-based-labels/main.js
index 2725b1983..b851e57b5 100644
--- a/github-actions/commit-message-based-labels/main.js
+++ b/github-actions/commit-message-based-labels/main.js
@@ -49407,6 +49407,7 @@ var require_git_client = __commonJS({
         return branchName;
       }
       hasUncommittedChanges() {
+        this.runGraceful(["update-index", "-q", "--refresh"]);
         return this.runGraceful(["diff-index", "--quiet", "HEAD"]).status !== 0;
       }
       checkout(branchOrRevision, cleanState) {
diff --git a/github-actions/slash-commands/main.js b/github-actions/slash-commands/main.js
index 0116458a0..74718ad35 100644
--- a/github-actions/slash-commands/main.js
+++ b/github-actions/slash-commands/main.js
@@ -55081,6 +55081,7 @@ var require_git_client = __commonJS({
         return branchName;
       }
       hasUncommittedChanges() {
+        this.runGraceful(["update-index", "-q", "--refresh"]);
         return this.runGraceful(["diff-index", "--quiet", "HEAD"]).status !== 0;
       }
       checkout(branchOrRevision, cleanState) {
diff --git a/ng-dev/utils/git/git-client.ts b/ng-dev/utils/git/git-client.ts
index 6ec2419cf..97c5c8130 100644
--- a/ng-dev/utils/git/git-client.ts
+++ b/ng-dev/utils/git/git-client.ts
@@ -158,6 +158,13 @@ export class GitClient {
 
   /** Gets whether the current Git repository has uncommitted changes. */
   hasUncommittedChanges(): boolean {
+    // We also need to refresh the index in case some files have been touched
+    // but not modified. The diff-index command will not check contents so we
+    // manually need to refresh and cleanup the index before performing the diff.
+    // Relevant info: https://git-scm.com/docs/git-diff-index#_non_cached_mode,
+    // https://git-scm.com/docs/git-update-index and https://stackoverflow.com/a/34808299.
+    this.runGraceful(['update-index', '-q', '--refresh']);
+
     return this.runGraceful(['diff-index', '--quiet', 'HEAD']).status !== 0;
   }
 
diff --git a/tools/local-actions/changelog/main.js b/tools/local-actions/changelog/main.js
index f83c66f45..9d49ac861 100644
--- a/tools/local-actions/changelog/main.js
+++ b/tools/local-actions/changelog/main.js
@@ -46508,6 +46508,7 @@ var require_git_client = __commonJS({
         return branchName;
       }
       hasUncommittedChanges() {
+        this.runGraceful(["update-index", "-q", "--refresh"]);
         return this.runGraceful(["diff-index", "--quiet", "HEAD"]).status !== 0;
       }
       checkout(branchOrRevision, cleanState) {