diff --git a/test_requirements.txt b/test_requirements.txt
index 4ea06ce6..399a28c8 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -3,6 +3,7 @@ atomicwrites==1.2.1
 attrs==18.2.0
 black==18.9b0; python_version >= '3.6'
 Click==7.0
+colorama==0.4.1
 coverage==4.5.1
 docopt==0.6.2
 flake8==3.5.0