diff --git a/python/pyproject.toml b/python/pyproject.toml
index c39c65f6e..ab9c492d5 100755
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -70,7 +70,7 @@ dependencies = [
   "transformers==4.57.1",
   "uvicorn",
   "uvloop==0.21.0",
-  "xgrammar==0.1.25",
+  "xgrammar==0.1.27",
   "grpcio==1.75.1", # keep it align with compile_proto.py
   "grpcio-tools==1.75.1", # keep it align with compile_proto.py
   "grpcio-reflection==1.75.1", # required by srt/entrypoints/grpc_server.py
diff --git a/python/pyproject_cpu.toml b/python/pyproject_cpu.toml
index 4454ddf15..158938daf 100644
--- a/python/pyproject_cpu.toml
+++ b/python/pyproject_cpu.toml
@@ -62,7 +62,7 @@ dependencies = [
   "transformers==4.57.1",
   "uvicorn",
   "uvloop==0.21.0",
-  "xgrammar==0.1.25",
+  "xgrammar==0.1.27",
   "grpcio==1.75.1", # keep it align with compile_proto.py
   "grpcio-tools==1.75.1", # keep it align with compile_proto.py
   "grpcio-reflection==1.75.1", # required by srt/entrypoints/grpc_server.py
diff --git a/python/pyproject_other.toml b/python/pyproject_other.toml
index c191a752b..426188206 100755
--- a/python/pyproject_other.toml
+++ b/python/pyproject_other.toml
@@ -62,7 +62,7 @@ runtime_common = [
   "transformers==4.57.1",
   "uvicorn",
   "uvloop==0.21.0",
-  "xgrammar==0.1.25",
+  "xgrammar==0.1.27",
   "grpcio==1.75.1", # keep it align with compile_proto.py
   "grpcio-tools==1.75.1", # keep it align with compile_proto.py
   "grpcio-reflection==1.75.1", # required by srt/entrypoints/grpc_server.py