diff --git a/.github/workflows/ci_docs.yml b/.github/workflows/ci_docs.yml
index 5e4863c..78d4bc4 100644
--- a/.github/workflows/ci_docs.yml
+++ b/.github/workflows/ci_docs.yml
@@ -1,4 +1,4 @@
-name: Deploy docs to GitHub Pages
+name: Deploy docs
 
 on:
   push:
@@ -13,22 +13,27 @@ on:
 jobs:
   ci_docs:
     runs-on: ubuntu-latest
+
     steps:
       - name: Checkout sources
         uses: actions/checkout@v3
+
       - name: Setup node
         uses: actions/setup-node@v3
         with:
           node-version: 14.x
           registry-url: https://registry.npmjs.org/
           cache: npm
-      - name: Make sure npm is latest
+
+      - name: Install latest npm
         run: npm install -g npm@latest
+
       - name: Build docs
         working-directory: projects/docs
         run: |
-          npm clean-install
+          npm clean-install --engine-strict
           npm run build
+
       - name: Deploy to GitHub Pages
         uses: peaceiris/actions-gh-pages@v3
         with:
diff --git a/.github/workflows/ci_publish.yml b/.github/workflows/ci_publish.yml
index 51cb5fc..3c6e4bf 100644
--- a/.github/workflows/ci_publish.yml
+++ b/.github/workflows/ci_publish.yml
@@ -1,30 +1,37 @@
-name: Publish library to NPM
+name: Publish library
 
 on:
   release:
     types: [created]
 
 jobs:
+  ci_tests:
+    uses: ./.github/workflows/ci_tests.yml
+
   ci_publish:
+    needs: ci_tests
     runs-on: ubuntu-latest
+
     steps:
       - name: Checkout sources
         uses: actions/checkout@v3
+
       - name: Setup node
         uses: actions/setup-node@v3
         with:
           node-version: 14.x
           registry-url: https://registry.npmjs.org/
-      - name: Make sure npm is latest
+          cache: npm
+
+      - name: Install latest npm
         run: npm install -g npm@latest
+
       - name: Install dependencies
-        run: npm clean-install
-      - name: Lint
-        run: npm run lint
-      - name: Test
-        run: npm run test
+        run: npm clean-install --engine-strict
+
       - name: Build
         run: npm run build:lib
+
       - name: Publish
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
diff --git a/.github/workflows/ci_tests.yml b/.github/workflows/ci_tests.yml
index 59c0fa8..6b1ce12 100644
--- a/.github/workflows/ci_tests.yml
+++ b/.github/workflows/ci_tests.yml
@@ -1,4 +1,4 @@
-name: CI tests
+name: Run tests
 
 on:
   push:
@@ -9,8 +9,13 @@ on:
     paths-ignore:
     - 'projects/docs/**'
   pull_request:
+  workflow_call:
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   ci_tests:
     name: Tests on ${{ matrix.os }} node${{ matrix.node }}
@@ -19,7 +24,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        node: [12, 14, 16]
+        node: [14, 16]
 
     steps:
       - name: Checkout sources
@@ -30,6 +35,7 @@ jobs:
         with:
           node-version: ${{ matrix.node }}
           registry-url: https://registry.npmjs.org/
+          cache: npm
 
       # https://github.com/actions/setup-node/issues/411
       # https://github.com/npm/cli/issues/4341
@@ -40,8 +46,19 @@ jobs:
       - name: Install latest npm
         run: npm install -g npm@latest
 
+      - name: Cache node_modules
+        uses: actions/cache@v3
+        id: cache-step
+        with:
+          key: cache-${{ matrix.os }}-node${{ matrix.node }}-${{ hashFiles('package-lock.json') }}
+          restore-keys: |
+            cache-${{ matrix.os }}-node${{ matrix.node }}-
+          path: |
+            node_modules
+
       - name: Install dependencies
-        run: npm clean-install
+        if: steps.cache-step.outputs.cache-hit != 'true'
+        run: npm clean-install --engine-strict
 
       - name: Lint
         run: npm run lint