diff --git a/python/pyproject.toml b/python/pyproject.toml
index f69934d26..3c30c36d9 100755
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -67,7 +67,7 @@ dependencies = [
   "tiktoken",
   "anthropic>=0.20.0",
   "torch_memory_saver==0.0.8",
-  "nvidia-cutlass-dsl==4.2.0",
+  "nvidia-cutlass-dsl==4.2.1",
 ]
 
 [project.optional-dependencies]
diff --git a/python/pyproject_other.toml b/python/pyproject_other.toml
index cebe0abf0..742e0026f 100755
--- a/python/pyproject_other.toml
+++ b/python/pyproject_other.toml
@@ -81,7 +81,7 @@ blackwell = [
     "torchvision",
     "cuda-python",
     "flashinfer_python==0.4.0rc1",
-    "nvidia-cutlass-dsl==4.2.0",
+    "nvidia-cutlass-dsl==4.2.1",
 ]
 
 # HIP (Heterogeneous-computing Interface for Portability) for AMD