diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bf10223..0f1b40f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ on:
   workflow_call:
     inputs:
       slow-tests:
-        type: bool
+        type: boolean
         required: false
         default: false
     secrets: