diff --git a/.github/workflows/validate-new-contributor.yaml b/.github/workflows/validate-new-contributor.yaml
index d177c7eb..56022262 100644
--- a/.github/workflows/validate-new-contributor.yaml
+++ b/.github/workflows/validate-new-contributor.yaml
@@ -11,7 +11,7 @@ on:
     inputs:
       pull-request-number:
         required: true
-        type: number
+        type: string # NOTE: github has a bug with type: number
     outputs:
       email-address:
         description: "The new contributor's email address."
diff --git a/.github/workflows/verify-new-contributor.yaml b/.github/workflows/verify-new-contributor.yaml
index d7a2e802..77db40b6 100644
--- a/.github/workflows/verify-new-contributor.yaml
+++ b/.github/workflows/verify-new-contributor.yaml
@@ -6,7 +6,7 @@ on:
       pull-request-number:
         description: "The number of the new contributor's PR."
         required: true
-        type: string # NOTE: github has bug with type number
+        type: string # NOTE: github has a bug with type: number
 
 jobs:
   view-pr:
diff --git a/.github/workflows/view-pull-request.yaml b/.github/workflows/view-pull-request.yaml
index 6a79a017..21ffb3f9 100644
--- a/.github/workflows/view-pull-request.yaml
+++ b/.github/workflows/view-pull-request.yaml
@@ -5,7 +5,7 @@ on:
     inputs:
       number:
         required: true
-        type: string # NOTE: github has bug with type number
+        type: string # NOTE: github has a bug with type: number
       outputs:
         required: false
         type: string