diff --git a/.travis.yml b/.travis.yml
index 27504ed..e62254f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ services:
   - docker
 
 before_install:
-  - export DOCKER_REPO=nlknguyen/shellcheck
+  - export DOCKER_REPO=koalaman/shellcheck
   - |-
     export TAG=$([ "$TRAVIS_BRANCH" == "master" ] && echo "latest" || echo $TRAVIS_BRANCH)
 
diff --git a/Dockerfile_builder b/Dockerfile_builder
index 2fb623c..b202ade 100644
--- a/Dockerfile_builder
+++ b/Dockerfile_builder
@@ -24,7 +24,8 @@ COPY . .
 # Build
 RUN cabal install
 
-# TODO: run tests
+# Test
+RUN cabal test
 
 # # ------------------------------------------------------------
 # # Set PATH