diff --git a/python/pyproject.toml b/python/pyproject.toml
index 3dfa9d258..09ba2ee20 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -60,7 +60,7 @@ srt = [
     "torchvision==0.22.1",
     "cuda-python",
     "einops",
-    "flashinfer_python==0.2.9rc1",
+    "flashinfer_python==0.2.9rc2",
 ]
 
 blackwell = [
@@ -71,7 +71,7 @@ blackwell = [
     "torchvision==0.22.1",
     "cuda-python",
     "einops",
-    "flashinfer_python==0.2.9rc1",
+    "flashinfer_python==0.2.9rc2",
 ]
 
 # HIP (Heterogeneous-computing Interface for Portability) for AMD
diff --git a/python/sglang/srt/entrypoints/engine.py b/python/sglang/srt/entrypoints/engine.py
index 4e1525544..c038e87fc 100644
--- a/python/sglang/srt/entrypoints/engine.py
+++ b/python/sglang/srt/entrypoints/engine.py
@@ -640,7 +640,7 @@ def _set_envs_and_config(server_args: ServerArgs):
     if server_args.attention_backend == "flashinfer":
         assert_pkg_version(
             "flashinfer_python",
-            "0.2.9rc1",
+            "0.2.9rc2",
             "Please uninstall the old version and "
             "reinstall the latest version by following the instructions "
             "at https://docs.flashinfer.ai/installation.html.",