diff --git a/.github/workflows/ci_eval.yaml b/.github/workflows/ci_eval.yaml
index 8f08a68aa..cf18212df 100644
--- a/.github/workflows/ci_eval.yaml
+++ b/.github/workflows/ci_eval.yaml
@@ -7,7 +7,6 @@
 name: CI - Perplexity
 
 on:
-  pull_request:
   workflow_dispatch:
   schedule:
     # Weekdays nightly at 07:00 UTC = 23:00 PST / 00:00 PDT.