diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7d5dfe4..ecfdac1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,32 +41,66 @@ jobs:
         uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
         with:
           python-version: '3.10'
+      - uses: aquaproj/aqua-installer@6ce1f8848ec8e61f14d57bd5d7597057a6dd187c # v3.0.1
+        with:
+          aqua_version: v2.28.1
       - name: collect coverage
         env:
           THEMIS_PROFILE: ${{ github.workspace }}/vim-profile-${{ runner.os }}-${{ matrix.neovim }}-${{ matrix.version }}.txt
         run: |
-          pip install covimerage
+          pip install covimerage==0.2.2
           covimerage write_coverage "${THEMIS_PROFILE}"
           covimerage xml
-      - uses: k1LoW/octocov-action@5213913fe329368ab9dafa16f18f4f3cce1062f0 # v1.3.0
       - name: create filename
         id: filename
-        run: echo "filename=badge-${{ runner.os }}-$(test \"${{ matrix.neovim }}\" = \"true\" && echo neovim || echo vim )-${{ matrix.version }}" >> "$GITHUB_OUTPUT"
+        run: echo "filename=${{ runner.os }}-$(test \"${{ matrix.neovim }}\" = \"true\" && echo neovim || echo vim )-${{ matrix.version }}" >> "$GITHUB_OUTPUT"
       - name: make covarage badge
         run: |
-          octocov badge coverage --out ${{ github.workspace }}/${{ steps.filename.outputs.filename }}.svg
+          octocov badge coverage --out ${{ github.workspace }}/badge-${{ steps.filename.outputs.filename }}.svg
       - name: upload badge to artifact
         uses: actions/upload-artifact@65462800fd760344b1a7b4382951275a0abb4808 # v4.3.3
         with:
-          path: ${{ steps.filename.outputs.filename }}.svg
-          name: ${{ steps.filename.outputs.filename }}
+          path: badge-${{ steps.filename.outputs.filename }}.svg
+          name: badge-${{ steps.filename.outputs.filename }}
           if-no-files-found: error
+      - name: rename coverage.xml
+        run: mv coverage.xml coverage-${{ steps.filename.outputs.filename }}.xml
+      - name: upload coverage to artifact
+        uses: actions/upload-artifact@65462800fd760344b1a7b4382951275a0abb4808 # v4.3.3
+        with:
+          path: coverage-${{ steps.filename.outputs.filename }}.xml
+          name: coverage-${{ steps.filename.outputs.filename }}
+          if-no-files-found: error
+
+  report-coverage-metrics:
+    runs-on: ubuntu-latest
+    needs: themis
+    steps:
+      - name: checkout
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+      - name: download artifacts
+        uses: actions/download-artifact@65a9edc5881444af0b9093a5e628f2fe47ea3b2e # v4.1.7
+        with:
+          pattern: "coverage-*"
+      - name: extract
+        run: |
+          mv **/*.xml ./
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: latest
+      - name: merge coverage
+        run: pnpm dlx cobertura-merge@1.0.4 -o coverage.xml $(ls *.xml | sed 's/^\(\(coverage\)-\(.*\)\.xml\)$/\3=\1/g')
+      - uses: k1LoW/octocov-action@v1
+
 
   upload-coverage-badge:
     runs-on: ubuntu-latest
     if: startsWith(github.ref, 'refs/heads/main')
     needs: themis
     steps:
+      - name: checkout
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
       - name: download artifacts
         uses: actions/download-artifact@65a9edc5881444af0b9093a5e628f2fe47ea3b2e # v4.1.7
         with:
diff --git a/.octocov.yml b/.octocov.yml
new file mode 100644
index 0000000..b386bc1
--- /dev/null
+++ b/.octocov.yml
@@ -0,0 +1,16 @@
+# generated by octocov init
+coverage:
+  if: true
+testExecutionTime:
+  if: true
+diff:
+  datastores:
+    - artifact://${GITHUB_REPOSITORY}
+comment:
+  if: is_pull_request
+summary:
+  if: true
+report:
+  if: is_default_branch
+  datastores:
+    - artifact://${GITHUB_REPOSITORY}
diff --git a/aqua.yaml b/aqua.yaml
new file mode 100644
index 0000000..36dece4
--- /dev/null
+++ b/aqua.yaml
@@ -0,0 +1,15 @@
+---
+# aqua - Declarative CLI Version Manager
+# https://aquaproj.github.io/
+# checksum:
+#   enabled: true
+#   require_checksum: true
+#   supported_envs:
+#   - all
+registries:
+- type: standard
+  ref: v4.188.0 # renovate: depName=aquaproj/aqua-registry
+packages:
+- name: k1LoW/octocov@v0.60.0
+- name: astral-sh/rye@0.34.0
+- name: astral-sh/uv@0.2.5