diff --git a/requirements.txt b/requirements.txt
index cb8a023..77284ea 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,5 +8,5 @@ labnode-async~=0.16.4
 prologix-gpib-async~=1.5.0
 pydantic~=2.13.2
 python-decouple~=3.8
-simplejson~=3.20.2
+simplejson~=4.0.1
 tinkerforge-async~=1.6.1