diff --git a/tests-requirements.txt b/tests-requirements.txt
index b8a8cd1..1803f06 100644
--- a/tests-requirements.txt
+++ b/tests-requirements.txt
@@ -5,3 +5,4 @@ coverage; python_version >= '3.0'
 pylint; python_version > '3.0'
 mypy; python_version > '3.0'
 pytest; python_version > '3.0'
+pytype; python_version > '3.0'
diff --git a/tests.sh b/tests.sh
index c74939c..3412e78 100755
--- a/tests.sh
+++ b/tests.sh
@@ -62,6 +62,11 @@ echo "[+] mypy"
 mypy --version
 mypy --config-file=.mypy.ini catcli/
 
+# pytype
+echo "[+] pytype"
+pytype --version
+pytype catcli/
+
 set +e
 grep -R 'TODO' catcli/ && echo "TODO found" && exit 1
 grep -R 'FIXME' catcli/ && echo "FIXME found" && exit 1