diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 27a4527..b19196a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x, 18.x, 20.x, 22.x]
+        node-version: [14.x, 16.x, 18.x, 20.x, 22.x]
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -27,15 +27,18 @@ jobs:
         run: npm ci
 
       - name: Build
+        if: matrix.node-version == '22.x'
         run: npm run build
 
       - name: Run tests
         run: npm test
 
       - name: Generate coverage report
+        if: matrix.node-version == '22.x'
         run: npm run coverage
 
       - name: Upload to coveralls
+        if: matrix.node-version == '22.x'
         uses: coverallsapp/github-action@v2
         with:
           file: ./coverage.lcov
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 86d0b5e..a1269a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,10 @@
 
 ## v0.12.0 / 2026-07-18
 ### Added
-- support ESM
+- support ESM #44
+
+### Fixed
+- Fix uploading coverage to coveralls #52
 
 ## v0.11.1 / 2025-05-24
 ### Fixed