diff --git a/sgl-kernel/CMakeLists.txt b/sgl-kernel/CMakeLists.txt
index f646cc873..72cac8ec9 100644
--- a/sgl-kernel/CMakeLists.txt
+++ b/sgl-kernel/CMakeLists.txt
@@ -86,6 +86,7 @@ option(SGL_KERNEL_ENABLE_SM100A "Enable SM100A" OFF)
 option(SGL_KERNEL_ENABLE_SM90A  "Enable SM90A"  OFF)
 option(SGL_KERNEL_ENABLE_BF16   "Enable BF16"   ON)
 option(SGL_KERNEL_ENABLE_FP8    "Enable FP8"    ON)
+option(SGL_KERNEL_ENABLE_FP4    "Enable FP4"    OFF)
 
 if ("${CUDA_VERSION}" VERSION_GREATER_EQUAL "12.8" OR SGL_KERNEL_ENABLE_SM100A)
     list(APPEND SGL_KERNEL_CUDA_FLAGS
@@ -118,6 +119,12 @@ if (SGL_KERNEL_ENABLE_FP8)
     )
 endif()
 
+if (SGL_KERNEL_ENABLE_FP4)
+    list(APPEND SGL_KERNEL_CUDA_FLAGS
+        "-DENABLE_NVFP4=1"
+    )
+endif()
+
 string(REPLACE "-D__CUDA_NO_HALF_OPERATORS__"       "" CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS}")
 string(REPLACE "-D__CUDA_NO_HALF_CONVERSIONS__"     "" CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS}")
 string(REPLACE "-D__CUDA_NO_BFLOAT16_CONVERSIONS__" "" CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS}")
diff --git a/sgl-kernel/Makefile b/sgl-kernel/Makefile
index 2eb9ddc55..e8e0910cd 100644
--- a/sgl-kernel/Makefile
+++ b/sgl-kernel/Makefile
@@ -45,7 +45,8 @@ format: check-deps ## Format all source files
 	@pre-commit run --all-files
 
 FILES_TO_UPDATE = python/sgl_kernel/version.py \
-                 pyproject.toml
+                 pyproject.toml \
+                 pyproject_rocm.toml
 
 update: ## Update version numbers across project files. Usage: make update <new_version>
 	@if [ -z "$(filter-out $@,$(MAKECMDGOALS))" ]; then \
diff --git a/sgl-kernel/pyproject.toml b/sgl-kernel/pyproject.toml
index 2169f5118..393dc6d0f 100644
--- a/sgl-kernel/pyproject.toml
+++ b/sgl-kernel/pyproject.toml
@@ -8,7 +8,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "sgl-kernel"
-version = "0.0.5.post3"
+version = "0.0.5.post4"
 description = "Kernel Library for SGLang"
 readme = "README.md"
 requires-python = ">=3.9"
diff --git a/sgl-kernel/pyproject_rocm.toml b/sgl-kernel/pyproject_rocm.toml
index 850f4ca20..db9c4a526 100644
--- a/sgl-kernel/pyproject_rocm.toml
+++ b/sgl-kernel/pyproject_rocm.toml
@@ -9,7 +9,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "sgl-kernel"
-version = "0.0.5.post3"
+version = "0.0.5.post4"
 description = "Kernel Library for SGLang"
 readme = "README.md"
 requires-python = ">=3.9"
diff --git a/sgl-kernel/python/sgl_kernel/version.py b/sgl-kernel/python/sgl_kernel/version.py
index 7be236d9a..15dc84979 100644
--- a/sgl-kernel/python/sgl_kernel/version.py
+++ b/sgl-kernel/python/sgl_kernel/version.py
@@ -1 +1 @@
-__version__ = "0.0.5.post3"
+__version__ = "0.0.5.post4"