diff --git a/src/github/validation/trigger.ts b/src/github/validation/trigger.ts
index 01724e0f..41c9e327 100644
--- a/src/github/validation/trigger.ts
+++ b/src/github/validation/trigger.ts
@@ -38,7 +38,10 @@ export function checkContainsTrigger(context: ParsedGitHubContext): boolean {
   if (isIssuesEvent(context) && context.eventAction === "labeled") {
     const labelName = (context.payload as any).label?.name || "";
 
-    if (labelTrigger && labelName === labelTrigger) {
+    if (
+      labelTrigger &&
+      labelName.toLowerCase() === labelTrigger.toLowerCase()
+    ) {
       console.log(`Issue labeled with trigger label '${labelTrigger}'`);
       return true;
     }
diff --git a/test/trigger-validation.test.ts b/test/trigger-validation.test.ts
index 27516432..611b6fc3 100644
--- a/test/trigger-validation.test.ts
+++ b/test/trigger-validation.test.ts
@@ -134,6 +134,20 @@ describe("checkContainsTrigger", () => {
       expect(checkContainsTrigger(context)).toBe(false);
     });
 
+    it("should return true when the labeled name differs only in case from the trigger", () => {
+      const context = {
+        ...mockIssueLabeledContext,
+        payload: {
+          ...mockIssueLabeledContext.payload,
+          label: {
+            ...(mockIssueLabeledContext.payload as any).label,
+            name: "Claude-Task",
+          },
+        },
+      } as ParsedGitHubContext;
+      expect(checkContainsTrigger(context)).toBe(true);
+    });
+
     it("should return false for non-labeled events", () => {
       const context = {
         ...mockIssueLabeledContext,