diff --git a/backend/api/src/main/python/requirements.txt b/backend/api/src/main/python/requirements.txt
old mode 100755
new mode 100644
index 1ccaf60..c8a8272
--- a/backend/api/src/main/python/requirements.txt
+++ b/backend/api/src/main/python/requirements.txt
@@ -2,7 +2,7 @@ connexion[swagger-ui] >= 2.6.0; python_version>="3.6"
 # 2.3 is the last version that supports python 3.4-3.5
 connexion[swagger-ui] <= 2.3.0; python_version=="3.5" or python_version=="3.4"
 # prevent breaking dependencies from advent of connexion>=3.0
-connexion[swagger-ui] <= 2.14.2; python_version>"3.4"
+connexion[swagger-ui] <= 3.3.0; python_version>"3.4"
 # connexion requires werkzeug but connexion < 2.4.0 does not install werkzeug
 # we must peg werkzeug versions below to fix connexion
 # https://github.com/zalando/connexion/pull/1044