diff --git a/.github/workflows/build-and-publish-standalone.yaml b/.github/workflows/build-and-publish-standalone.yaml
index c4bd5e9e..3f1a0470 100644
--- a/.github/workflows/build-and-publish-standalone.yaml
+++ b/.github/workflows/build-and-publish-standalone.yaml
@@ -125,6 +125,13 @@ jobs:
           node-version-file: '.nvmrc'
           cache: 'yarn'
 
+        # Tag builds (RC, formal and sprint releases) ship the tag as the package
+        # version. RC/formal tags already match package.json; sprint tags
+        # (vX.Y.Z-dev-YYYYMMDD) only share its prefix, so pin it here for the build.
+      - name: Pin package version to tag
+        if: ${{ inputs.CI_BUILD_TAG != '' }}
+        run: ./scripts/bump_version.sh "${{ inputs.CI_BUILD_TAG }}"
+
       - id: ci-build-pkg
         name: Build pkg
         run: ./scripts/ci-build-pkg.sh harvester
diff --git a/.github/workflows/build-extension-catalog.yml b/.github/workflows/build-extension-catalog.yml
index d0ba5cb8..07754806 100644
--- a/.github/workflows/build-extension-catalog.yml
+++ b/.github/workflows/build-extension-catalog.yml
@@ -58,6 +58,12 @@ jobs:
       - name: Setup Nodejs with yarn install
         uses: ./.github/actions/setup
 
+        # The catalog image is tagged with the package.json version. Sprint tags
+        # (vX.Y.Z-dev-YYYYMMDD) only share its prefix, so pin it to the tag here.
+      - name: Pin package version to tag
+        if: ${{ github.ref_type == 'tag' }}
+        run: ./scripts/bump_version.sh "${{ github.ref_name }}"
+
       - name: Build and push UI image
         run: |
           publish="yarn publish-pkgs -cp -r ${{ inputs.registry_target }} -o ${{ inputs.registry_user }}"