diff --git a/.github/codecov.yml b/.github/codecov.yml
index ed9d9f1c..914690d9 100644
--- a/.github/codecov.yml
+++ b/.github/codecov.yml
@@ -3,6 +3,7 @@ coverage:
     project:
       default:
         threshold: 0.5%
+        removed_code_behavior: fully_covered_patch
     patch:
       default:
-        target: 80%
\ No newline at end of file
+        target: 80%coverage:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ca263a9a..70e66dce 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,9 +45,11 @@ jobs:
         env:
           JULIA_NUM_THREADS: 2
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v4
         with:
-          file: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false
+          verbose: true 
   docs:
     name: Documentation
     runs-on: ubuntu-latest
diff --git a/README.md b/README.md
index b6b08900..e93ac8a2 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ A base Julia interface for machine learning and statistics
 
 [![Lifecycle:Maturing](https://img.shields.io/badge/Lifecycle-Maturing-007EC6)](ROADMAP.md)
 [![Build Status](https://github.com/JuliaAI/LearnAPI.jl/workflows/CI/badge.svg)](https://github.com/JuliaAI/LearnAPI.jl/actions)
-[![Coverage](https://codecov.io/gh/JuliaAI/LearnAPI.jl/branch/master/graph/badge.svg)](https://codecov.io/github/JuliaAI/LearnAPI.jl?branch=master)
+[![codecov](https://codecov.io/gh/JuliaAI/LearnAPI.jl/graph/badge.svg?token=9IWT9KYINZ)](https://codecov.io/gh/JuliaAI/LearnAPI.jl?branch=dev)
 [![Docs](https://img.shields.io/badge/docs-dev-blue.svg)](https://juliaai.github.io/LearnAPI.jl/dev/)
 
 Comprehensive documentation is [here](https://juliaai.github.io/LearnAPI.jl/dev/).