diff --git a/requirements.txt b/requirements.txt
index 5f4c1e1e6f..d9b89cfa07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,6 +36,7 @@ opentelemetry-exporter-otlp==1.25.0
 sentry_sdk==2.21.0 # for sentry error handling
 detect-secrets==1.5.0 # Enterprise - secret detection / masking in LLM requests
 cryptography==43.0.1
+tzdata==2025.1 # IANA time zone database
 
 ### LITELLM PACKAGE DEPENDENCIES
 python-dotenv==1.0.0 # for env