diff --git a/requirements.txt b/requirements.txt
index 24462c7..16caebb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 bleak>=0.21.0
 
 # CBOR encoding/decoding for VanMoof protocol
-cbor2>=5.4.0
+cbor2>=5.9.0
 
 # Cryptography for Ed25519 signing
 cryptography>=41.0.0