diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index e10412a..71e07e1 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -51,3 +51,9 @@ jobs:
       - name: Install libaacgm
         run: just install
       - uses: julia-actions/julia-runtest@v1
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v5
+        with:
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false
\ No newline at end of file
diff --git a/README.md b/README.md
index 2032532..564a00d 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 [![Documentation](https://img.shields.io/badge/docs-dev-blue.svg)](https://beforerr.github.io/GeoAACGM.jl)
 [![](https://img.shields.io/badge/%F0%9F%9B%A9%EF%B8%8F_tested_with-JET.jl-233f9a)](https://github.com/aviatesk/JET.jl)
 [![Aqua QA](https://raw.githubusercontent.com/JuliaTesting/Aqua.jl/master/badge.svg)](https://github.com/JuliaTesting/Aqua.jl)
+[![Coverage](https://codecov.io/gh/Beforerr/GeoAACGM.jl/branch/main/graph/badge.svg)](https://codecov.io/gh/Beforerr/GeoAACGM.jl)
 
 A pure Julia implementation of the Altitude-Adjusted Corrected Geomagnetic (AACGM) coordinate system. Fast and accurate.