diff --git a/action.yml b/action.yml
index 999e6690..bd21472b 100644
--- a/action.yml
+++ b/action.yml
@@ -66,10 +66,6 @@ inputs:
     description: "Specify a relative path under $GITHUB_WORKSPACE to locate the repository"
     required: false
     default: "."
-  use_fork_point:
-    description: "Finds best common ancestor between two commits to use in a three-way merge as the base_sha"
-    default: "false"
-    required: false
   quotepath:
     description: "Output filenames completely verbatim by setting this to false"
     default: "true"
@@ -207,7 +203,6 @@ runs:
         INPUT_SHA: ${{ steps.sha.outputs.sha }}
         INPUT_BASE_SHA: ${{ steps.base-sha.outputs.base_sha }}
         INPUT_PATH: ${{ inputs.path }}
-        INPUT_USE_FORK_POINT: ${{ inputs.use_fork_point }}
     - name: Glob match
       uses: tj-actions/glob@v13
       id: glob