diff --git a/requirements.txt b/requirements.txt
index 001165e..3e0ed63 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-tornado==6.4
+tornado==6.3.3
 isodate==0.6.1
-pytest==7.4.4
+pytest==7.4.3
 schwifty==2024.1.1.post0
 Cerberus==1.3.5
 validator-collection==1.5.0