diff --git a/.build.yml b/.build.yml
index 1ba4c4d..da30cc0 100644
--- a/.build.yml
+++ b/.build.yml
@@ -1,11 +1,10 @@
 image: alpine/edge
 packages:
   - go
-  # Required by codecov
-  - bash
-  - findutils
 sources:
   - https://github.com/emersion/go-msgauth
+artifacts:
+  - coverage.html
 tasks:
   - build: |
       cd go-msgauth
@@ -13,7 +12,6 @@ tasks:
   - test: |
       cd go-msgauth
       go test -coverprofile=coverage.txt -covermode=atomic ./...
-  - upload-coverage: |
+  - coverage: |
       cd go-msgauth
-      export CODECOV_TOKEN=2db2b6a5-8f23-4e1e-a6ac-6e8db41eb3d1
-      curl -s https://codecov.io/bash | bash
+      go tool cover -html=coverage.txt -o ~/coverage.html
diff --git a/README.md b/README.md
index 0d1c994..1b7e77f 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,6 @@
 
 [![godocs.io](https://godocs.io/github.com/emersion/go-msgauth?status.svg)](https://godocs.io/github.com/emersion/go-msgauth)
 [![builds.sr.ht status](https://builds.sr.ht/~emersion/go-msgauth/commits/master.svg?)](https://builds.sr.ht/~emersion/go-msgauth/commits/master)
-[![codecov](https://codecov.io/gh/emersion/go-msgauth/branch/master/graph/badge.svg)](https://codecov.io/gh/emersion/go-msgauth)
 
 A Go library to authenticate e-mails: