diff --git a/requirements.txt b/requirements.txt
index fe28a9202..c998a63e4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ numpy==2.2.6; python_version < "3.14"
 numpy>=2.3.0; python_version >= "3.14"
 torch>=2.8.0
 safetensors>=0.7.0
-transformers>=5.4.0
+transformers>=5.4.0,<5.6.0
 threadpoolctl>=3.6.0
 packaging>=24.2
 device-smi>=0.5.5