diff --git a/.buildkite/cuda/test-ready.yml b/.buildkite/cuda/test-ready.yml
index d622aecbe..90e39b12a 100644
--- a/.buildkite/cuda/test-ready.yml
+++ b/.buildkite/cuda/test-ready.yml
@@ -8,7 +8,6 @@ steps:
   - group: ":card_index_dividers: Simple Test"
     depends_on: upload-ready-pipeline
     steps:
-
       - label: "Simple · Diffusion & Model Executor Test"
         commands:
           - "timeout 20m pytest -sv tests/diffusion tests/model_executor -m 'core_model and cpu' --cov=vllm_omni --cov-report=term-missing:skip-covered --cov-report=xml"
diff --git a/pyproject.toml b/pyproject.toml
index 4a39c45c2..c71e17b4e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,41 +36,41 @@ classifiers = [
 [project.optional-dependencies]
 
 dev = [
-    "pytest>=7.0.0",
-    "pytest-asyncio>=0.21.0",
-    "pytest-cov>=4.0.0",
-    "pytest-mock>=3.10.0",
-    "websockets>=15.0.1",
-    "pytest-subtests>=0.11.0",
-    "datasets>=2.14.0",
+    "pytest==9.1.1",
+    "pytest-asyncio==1.4.0",
+    "pytest-cov==7.1.0",
+    "pytest-mock==3.15.1",
+    "websockets==16.1",
+    "pytest-subtests==0.15.0",
+    "datasets==3.6.0",
     "mypy==1.11.1",
     "pre-commit==4.0.1",
-    "openai-whisper>=20250625",
-    "psutil>=7.2.0",
-    "soundfile>=0.13.1",
-    "imageio[ffmpeg]>=0.6.0",
-    "opencv-python>=4.12.0.88",
-    "mooncake-transfer-engine-cuda13>=0.3.9",
-    "av", # for ComfyUI tests
-    "openpyxl>=3.0.0", # for nightly CI
-    "pyttsx3>=2.99",
-    "opencc>=1.2.0",
-    "mistune>=3.2.0", # for example tests
-    "torchmetrics>=1.4.0", # for accuracy similarity metrics
-    "ray[default]", # for RL test
-    "jiwer>=3.0.0",
-    "zhon>=2.0.0",
-    "zhconv>=1.4.2",
-    "scipy>=1.10.0",
-    "funasr>=1.0.0",
-    "lpips>=0.1.4", # for quantization fp8
-    "orjson>=3.11.7", # to make v1/embeddings API fast
-    "voxcpm>=2.0.2", # for VoxCPM2 path-locating in tests
-    "torchdiffeq>=0.2.5", # for covo_audio Test
-    "FlagEmbedding", # for hunyuan_image3 tests
-    "kernels<0.15.0", # for accuracy tests comparison with diffusers output (0.15.0 incompatible with diffusers 0.38.0)
-    "s3tokenizer>=0.3.0", # for tts test
-    "step-audio2>=1.0.0", # Step-Audio2 Token2Wav (flashcosyvoice / hyperpyyaml)
+    "openai-whisper==20250625",
+    "psutil==7.2.2",
+    "soundfile==0.14.0",
+    "imageio[ffmpeg]==2.37.4",
+    "opencv-python==5.0.0.93",
+    "mooncake-transfer-engine-cuda13==0.3.11.post1",
+    "av==18.0.0", # for ComfyUI tests
+    "openpyxl==3.1.5", # for nightly CI
+    "pyttsx3==2.99",
+    "opencc==1.4.1",
+    "mistune==3.3.4", # for example tests
+    "torchmetrics==1.9.0", # for accuracy similarity metrics
+    "ray[default]==2.56.1", # for RL test
+    "jiwer==4.0.0",
+    "zhon==2.1.1",
+    "zhconv==1.4.3",
+    "scipy==1.18.0",
+    "funasr==1.3.29",
+    "lpips==0.1.4", # for quantization fp8
+    "orjson==3.11.9", # to make v1/embeddings API fast
+    "voxcpm==2.0.3", # for VoxCPM2 path-locating in tests
+    "torchdiffeq==0.2.5", # for covo_audio Test
+    "FlagEmbedding==1.4.0", # for hunyuan_image3 tests
+    "kernels==0.14.1", # for accuracy tests comparison with diffusers output (0.15.0 incompatible with diffusers 0.38.0)
+    "s3tokenizer==0.3.0", # for tts test
+    "step-audio2==1.0.0", # Step-Audio2 Token2Wav (flashcosyvoice / hyperpyyaml)
 ]
 
 demo = [