diff --git a/Dockerfile b/Dockerfile
index 59891d2e5479669771f84ab9759ef897de67eba6..dd3f18232c0bd878d43a8a91e0f207df2809ce0d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.8-slim
+FROM python:3.9-slim
 
 LABEL maintainer="David Trattnig <david.trattnig@subsquare.at>"
 
diff --git a/requirements.txt b/requirements.txt
index b12c25b711fd752e97ef294aba7ecaa791800c5a..9629fe7144d345d8f7f9dbba936650f7a060f314 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,13 +1,14 @@
 requests==2.24.0
-connexion >= 2.7.0
-connexion[swagger-ui] >= 2.7.0
-python_dateutil == 2.6.0
-typing == 3.5.2.2
-setuptools >= 21.0.0
+connexion>=2.8.0
+connexion[swagger-ui]>=2.8.0
+python_dateutil==2.6.0
+typing==3.5.2.2
+setuptools>=21.0.0
 gunicorn==20.0.4
 sqlalchemy==1.3.17
 Flask_SQLAlchemy==2.4.3
 flask-marshmallow==0.13.0
 marshmallow-sqlalchemy==0.23.1
 wheel==0.37.0
-swagger-ui-bundle >= 0.0.2
\ No newline at end of file
+swagger-ui-bundle>=0.0.2
+click>=8.0.0
\ No newline at end of file