diff --git a/.circleci/config.yml b/.circleci/config.yml
index 524d75c..2137945 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -29,7 +29,12 @@ jobs:
             - run:
                 name: run unit tests
                 command: |
-                    py.test tests/
+                    py.test --cov=tljh tests/
+
+            - run:
+                name: upload code coverage stats
+                command: |
+                    codecov
 
     integration-test:
         docker:
diff --git a/dev-requirements.txt b/dev-requirements.txt
index e079f8a..9cf8484 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1 +1,3 @@
 pytest
+pytest-cov
+codecov