diff --git a/.github/workflows/upgrade-one-python-dependency.yml b/.github/workflows/upgrade-one-python-dependency.yml
index 1802fa75ac1b..2ac704e9993e 100644
--- a/.github/workflows/upgrade-one-python-dependency.yml
+++ b/.github/workflows/upgrade-one-python-dependency.yml
@@ -12,6 +12,10 @@ on:
          description: 'Name of package to upgrade'
          required: true
          type: string
+       version:
+          description: 'Version number to upgrade to in constraints.txt (only needed if pinned)'
+          default: ''
+          type: string
        change_desc:
          description: |
            Description of change, for commit message and PR. (What does the new version add or fix?)
@@ -37,6 +41,13 @@ jobs:
         with:
           python-version: "3.8"
 
+      - name: Update any pinned dependencies
+        env:
+          NEW_VERSION: "${{ inputs.version }}"
+          PACKAGE: "${{ inputs.package }}"
+        run: |
+          sed 's/^\('$PACKAGE'[^#]*\)==[^ #]\+/\1=='$NEW_VERSION'/' -i requirements/constraints.txt
+
       - name: Run make upgrade-package
         env:
           PACKAGE: "${{ inputs.package }}"
@@ -84,6 +95,7 @@ jobs:
           body: |
             ${{ env.body_prefix }}PR generated by workflow `${{ github.workflow_ref }}` on behalf of @${{ github.triggering_actor }}.
           assignees: "${{ github.triggering_actor }}"
+          reviewers: "${{ github.triggering_actor }}"
 
       - name: Job summary
         env: