diff --git a/ci/pip_requirements.txt b/ci/pip_requirements.txt
index 429f3a28..83d717aa 100644
--- a/ci/pip_requirements.txt
+++ b/ci/pip_requirements.txt
@@ -1,6 +1,6 @@
 openapi-spec-validator < 0.2.10
+swagger-ui-bundle=0.0.9
 connexion[swagger-ui] < 2.7.1
-swagger-ui-bundle
 pyjwt[crypto] < 2.2.0
 pytest < 5.3.4
 pytest-cov