diff --git a/pyproject.toml b/pyproject.toml
index b04a496..ed921f2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -79,7 +79,7 @@ dependencies = [
   "platformdirs<5",
   "pueblo==0.0.11",
   "requests<3",
-  "tiktoken<0.12",
+  "tiktoken<0.13",
 ]
 optional-dependencies.all = [
   "cratedb-about[manyio,llm]",