diff --git a/.github/workflows/buildtest.yml b/.github/workflows/buildtest.yml
index 3d8c24e..9d48c2c 100644
--- a/.github/workflows/buildtest.yml
+++ b/.github/workflows/buildtest.yml
@@ -107,7 +107,7 @@ jobs:
           covimerage write_coverage "${THEMIS_PROFILE}"
           coverage xml
       - name: Send coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ./coverage.xml
           env_vars: OS,VIMVER
@@ -229,7 +229,7 @@ jobs:
           covimerage write_coverage ${Env:THEMIS_PROFILE}
           coverage xml
       - name: Send coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ./coverage.xml
           env_vars: OS,VIMVER