diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index c4ab8d250..64eae7a71 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -42,12 +42,14 @@ jobs:
         CMAKE_LIBRARY_PATH="${BASE}/build" GTEST_ROOT="${BASE}/usr" CMAKE_PREFIX_PATH="${BASE}/usr/gcc/lib64/cmake" cmake -DMSGPACK_32BIT=OFF -DBUILD_SHARED_LIBS=ON -DMSGPACK_CHAR_SIGN=signed -DMSGPACK_BUILD_EXAMPLES=ON -DMSGPACK_BUILD_TESTS=ON -DCMAKE_BUILD_TYPE=Debug -DMSGPACK_GEN_COVERAGE=ON ..
         make -j4
         make test
-    - name: Upload coverage to Codecov
-      working-directory: build
+    - name: Generate coverage
       run: |
         # Create lcov report
         lcov --capture --directory . --output-file coverage.info
         lcov --remove coverage.info '/usr/*' --output-file coverage.info # filter system-files
         lcov --list coverage.info # debug info
-        # Uploading report to CodeCov
-        bash <(curl -s https://codecov.io/bash) -f coverage.info || echo "Codecov did not collect coverage reports"
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v5
+      with:
+        files: build/coverage.info
+        token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/README.md b/README.md
index 0a99093b2..763817d80 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 ===================
 
 Version 6.1.0 [![Build Status](https://github.com/msgpack/msgpack-c/workflows/CI/badge.svg?branch=c_master)](https://github.com/msgpack/msgpack-c/actions) [![Build status](https://ci.appveyor.com/api/projects/status/8kstcgt79qj123mw/branch/c_master?svg=true)](https://ci.appveyor.com/project/redboltz/msgpack-c/branch/c_master)
-[![codecov](https://codecov.io/gh/msgpack/msgpack-c/branch/c_master/graph/badge.svg)](https://codecov.io/gh/msgpack/msgpack-c/branch/c_master)
+[![codecov](https://codecov.io/gh/msgpack/msgpack-c/branch/c_master/graph/badge.svg)](https://app.codecov.io/gh/msgpack/msgpack-c/tree/c_master)
 
 It's like JSON but smaller and faster.
 
diff --git a/codecov.yml b/codecov.yml
index caa300582..7d26bc2b3 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -27,10 +27,6 @@ comment:
 
 ignore:
   - "test"
-  - "fuzz"
-  - "erb"
   - "ci"
   - "cmake"
-  - "examle"
-  - "external"
-  - "usr"
+  - "example"
diff --git a/test/msgpack_c.cpp b/test/msgpack_c.cpp
index 166c2b482..5a062b63f 100644
--- a/test/msgpack_c.cpp
+++ b/test/msgpack_c.cpp
@@ -1688,17 +1688,17 @@ TEST(MSGPACKC, init_msgpack_obj_ext) {
     EXPECT_STREQ(buffer, obj.via.ext.ptr);
 }
 
+#define BUFFER_SIZE 4
 TEST(MSGPACKC, init_msgpack_obj_array) {
     msgpack_object obj;
     char buffer[][7] = {"test_1", "test_2", "test_3", "test_4"};
-    uint32_t buffer_size = 4;
-    msgpack_object array[buffer_size];
-    for(size_t i = 0; i < buffer_size; i++) {
+    msgpack_object array[BUFFER_SIZE];
+    for(size_t i = 0; i < BUFFER_SIZE; i++) {
         msgpack_object_init_str(&array[i], buffer[i], (uint32_t)strlen(buffer[i]));
     }
-    msgpack_object_init_array(&obj, array, buffer_size);
+    msgpack_object_init_array(&obj, array, BUFFER_SIZE);
     EXPECT_EQ(MSGPACK_OBJECT_ARRAY, obj.type);
-    for(size_t i = 0; i < buffer_size; i++) {
+    for(size_t i = 0; i < BUFFER_SIZE; i++) {
         EXPECT_STREQ(buffer[i], obj.via.array.ptr[i].via.str.ptr);
     }
 }