diff --git a/.github/workflows/code-coverage-test.yml b/.github/workflows/code-coverage-test.yml
index 7222c88..8ab6138 100644
--- a/.github/workflows/code-coverage-test.yml
+++ b/.github/workflows/code-coverage-test.yml
@@ -1,13 +1,8 @@
-name: coverage_test
-on:
-  pull_request:
-    types:
-      - closed 
+name: code-coverage-test
+on: ["push", "pull_request"]
 
 jobs:
-  if_merged:
-    if: github.event.pull_request.merged == true
-    build:
+  build:
     name: coverage-test
     runs-on: ubuntu-latest
     steps:
@@ -96,13 +91,19 @@ jobs:
         run: |
           make installcheck
           /usr/lib/postgresql/14/bin/psql -d postgres -p 5432 -c "\list"
-          make coverage-html
-          lcov --capture --directory . --output-file coverage/lcov.info
-          pip install cpp-coveralls
-          export COVERALLS_REPO_TOKEN="${{ secrets.COVERALL_PG_STAT_MONITOR_TOKEN }}"
-          coveralls --verbose
+          gcov -abcfu pg_stat_monitor.c
+          gcov -abcfu guc.c
+          gcov -abcfu hash_query.c
+          sudo chmod -R ugo+rwx *.gcov*
         working-directory: src/pg_stat_monitor/
 
+      - name: Upload
+        uses: codecov/codecov-action@v2
+        with:
+          verbose: true
+          working-directory: ./src/pg_stat_monitor
+          files: ./pg_stat_monitor.c.gcov,./hash_query.c.gcov,./guc.c.gcov
+
       - name: Change dir permissions on fail
         if: ${{ failure() }}
         run: |
diff --git a/.gitignore b/.gitignore
index f8b1f92..b7720b1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -51,4 +51,7 @@ Mkfile.old
 dkms.conf
 
 ## IDE
-.idea
\ No newline at end of file
+.idea
+
+## DS_Store
+*.DS_Store
diff --git a/README.md b/README.md
index a868d40..0ef7348 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,7 @@
 ![PostgreSQL-13](https://github.com/percona/pg_stat_monitor/workflows/postgresql-13-build/badge.svg) ![PostgreSQL-13-Package](https://github.com/percona/pg_stat_monitor/workflows/postgresql-13-package/badge.svg)
 ![PostgreSQL-14](https://github.com/percona/pg_stat_monitor/workflows/postgresql-14-build/badge.svg) ![PostgreSQL-14-Package](https://github.com/percona/pg_stat_monitor/workflows/postgresql-14-package/badge.svg)
 
-[![Coverage Status](https://coveralls.io/repos/github/percona/pg_stat_monitor/badge.svg?branch=main)](https://coveralls.io/github/percona/pg_stat_monitor?branch=main)
-
+[![Code coverage](https://codecov.io/gh/percona/pg_stat_monitor/branch/main/graph/badge.svg)](https://codecov.io/gh/percona/pg_stat_monitor)
 # pg_stat_monitor: Query Performance Monitoring Tool for PostgreSQL
 
 ## Table of Contents