diff --git a/pyproject.toml b/pyproject.toml
index 0df2117..2ca2cb2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -51,7 +51,7 @@ dependencies = [
   "runpod>=1.8.1",
   "sentencepiece>=0.2.1",
   "scikit-learn>=1.7.2",
-  "simplejson>=3.20.2",
+  "simplejson>=4.1.1",
   "tabulate>=0.9.0",
   "tensorboard>=2.20.0",
   "tqdm>=4.67.1",