diff --git a/.github/workflows/d.yml b/.github/workflows/d.yml
index 10e81ea..c7d255f 100644
--- a/.github/workflows/d.yml
+++ b/.github/workflows/d.yml
@@ -6,9 +6,9 @@ name: D
 
 on:
   push:
-    branches: [ "master" ]
+    branches: [ "**" ]
   pull_request:
-    branches: [ "master" ]
+    branches: [ "**" ]
 
 permissions:
   contents: read
@@ -22,6 +22,11 @@ jobs:
     - uses: actions/checkout@v3
     - uses: dlang-community/setup-dlang@4c99aa991ce7d19dd3064de0a4f2f6b2f152e2d7
 
+    - name: Install Doveralls (code coverage tool)
+      run: |
+        dub fetch doveralls
+        sudo apt install libcurl4-openssl-dev
+
     - name: 'Build & Test'
       run: |
         # Build the project, with its main file included, without unittests
@@ -29,4 +34,8 @@ jobs:
         # Build and run tests, as defined by `unittest` configuration
         # In this mode, `mainSourceFile` is excluded and `version (unittest)` are included
         # See https://dub.pm/package-format-json.html#configurations
-        dub test --compiler=$DC
+        dub test --compiler=$DC --coverage
+
+    - name: Coverage upload
+      run: |
+        dub run doveralls -- -t ${{secrets.COVERALLS_REPO_TOKEN}}
\ No newline at end of file
diff --git a/README.md b/README.md
index 4b96dba..ed91629 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 bformat
 =======
 
-[![D](https://github.com/besterprotocol/bformat/actions/workflows/d.yml/badge.svg)](https://github.com/besterprotocol/bformat/actions/workflows/d.yml)
+[![D](https://github.com/besterprotocol/bformat/actions/workflows/d.yml/badge.svg)](https://github.com/besterprotocol/bformat/actions/workflows/d.yml) [![Coverage Status](https://coveralls.io/repos/github/besterprotocol/bformat/badge.svg?branch=master)](https://coveralls.io/github/besterprotocol/bformat?branch=master)
 
 A simple message format for automatically length-prefixing messages over any [`Socket`](https://dlang.org/phobos/std_socket.html#.Socket) or [River-based](https://github.com/deavmi/river) [`Stream`](https://river.dpldocs.info/river.core.stream.Stream.html).