diff --git a/pyproject.toml b/pyproject.toml
index 0b1c976..be92d54 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ sentence-transformers = "^2.3"
 numpy = "^1.26"
 
 # Token Counting
-tiktoken = "^0.5"
+tiktoken = "^0.12"
 
 # API
 fastapi = "^0.109"