diff --git a/.Rbuildignore b/.Rbuildignore
index 8f83fc9..622c6e1 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -19,3 +19,4 @@ vignettes/figure/
 ^doc$
 ^Meta$
 ^CRAN-RELEASE$
+^codecov\.yml$
diff --git a/.github/workflows/test-coverage.yaml b/.github/workflows/test-coverage.yaml
new file mode 100644
index 0000000..27d4528
--- /dev/null
+++ b/.github/workflows/test-coverage.yaml
@@ -0,0 +1,50 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: test-coverage
+
+jobs:
+  test-coverage:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::covr
+          needs: coverage
+
+      - name: Test coverage
+        run: |
+          covr::codecov(
+            quiet = FALSE,
+            clean = FALSE,
+            install_path = file.path(normalizePath(Sys.getenv("RUNNER_TEMP"), winslash = "/"), "package")
+          )
+        shell: Rscript {0}
+
+      - name: Show testthat output
+        if: always()
+        run: |
+          ## --------------------------------------------------------------------
+          find ${{ runner.temp }}/package -name 'testthat.Rout*' -exec cat '{}' \; || true
+        shell: bash
+
+      - name: Upload test results
+        if: failure()
+        uses: actions/upload-artifact@v3
+        with:
+          name: coverage-test-failures
+          path: ${{ runner.temp }}/package
diff --git a/README.Rmd b/README.Rmd
index e70e017..fa58f81 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -17,6 +17,7 @@ knitr::opts_chunk$set(
 <!-- badges: start -->
 [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/)
 [![R-CMD-check](https://github.com/ropensci/rebird/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/ropensci/rebird/actions/workflows/R-CMD-check.yaml)
+[![Codecov test coverage](https://codecov.io/gh/ropensci/rebird/branch/master/graph/badge.svg)](https://app.codecov.io/gh/ropensci/rebird?branch=master)
 [![Coverage Status](https://coveralls.io/repos/ropensci/rebird/badge.svg)](https://coveralls.io/github/ropensci/rebird)
 [![rstudio mirror downloads](https://cranlogs.r-pkg.org/badges/rebird)](https://github.com/r-hub/cranlogs.app)
 [![cran version](https://www.r-pkg.org/badges/version/rebird)](https://cran.r-project.org/package=rebird/)
diff --git a/README.md b/README.md
index f62623a..ba1c25a 100755
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@
 state and is being actively
 developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/)
 [![R-CMD-check](https://github.com/ropensci/rebird/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/ropensci/rebird/actions/workflows/R-CMD-check.yaml)
+[![Codecov test
+coverage](https://codecov.io/gh/ropensci/rebird/branch/master/graph/badge.svg)](https://app.codecov.io/gh/ropensci/rebird?branch=master)
 [![Coverage
 Status](https://coveralls.io/repos/ropensci/rebird/badge.svg)](https://coveralls.io/github/ropensci/rebird)
 [![rstudio mirror
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 0000000..04c5585
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,14 @@
+comment: false
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+        informational: true
+    patch:
+      default:
+        target: auto
+        threshold: 1%
+        informational: true