diff --git a/requirements.txt b/requirements.txt
index 8900371a..613a4bea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 blinker==1.7.0 # Added manually, to be removed later.
 bs4==0.0.2
 chardet==5.2.0
-connexion==3.0.5
+connexion==2.14.2
 Flask-Admin==1.6.1
 Flask-APScheduler==1.13.1
 Flask-BasicAuth==0.2.0