diff --git a/requirements.txt b/requirements.txt
index 2eca26e..42e108b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-cosl==0.0.42
+cosl==0.0.51
 jsonschema==4.23.0
 ops==2.18.0
 pydantic==1.10.21