diff --git a/requirements.txt b/requirements.txt
index 31d4d9f..d5ff0f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,4 +19,4 @@ cryptography
 # lib/charms/tempo_coordinator_k8s/v1/tracing.py
 pydantic>=2
 # lib/charms/prometheus_k8s/v0/prometheus_scrape.py
-cosl>=0.0.40
+cosl>=0.0.41