diff --git a/pyproject.toml b/pyproject.toml
index 32f0d79..b3248cc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ dev = [
   "sacrebleu>=2.4,<2.6",
   "sacremoses==0.1.*",
   "sentencepiece==0.2.*",
-  "transformers>=4.42.3,<4.49",
+  "transformers>=4.42.3,<4.57",
   # added for docs
   "mkdocs==1.6.*",
   "mkdocs-material>=9.5,<9.7",