diff --git a/scripts/requirements-minimax-h3-cuda.txt b/scripts/requirements-minimax-h3-cuda.txt
index a334237d68..36d67374a0 100644
--- a/scripts/requirements-minimax-h3-cuda.txt
+++ b/scripts/requirements-minimax-h3-cuda.txt
@@ -12,7 +12,7 @@
 # it first, from the host's correct index (see WIN_TORCH_CUDA_INDEX in
 # server/lib/pythonSetup.js, and PORTOS_TORCH_CUDA_INDEX to override).
 
-diffusers==0.40.0
+diffusers==0.38.0
 
 # int8 weight-only quantization. This is what makes H3 fit a consumer card at
 # all: the bf16 transformer + Qwen3-VL conditioner are 133 GB together, and
diff --git a/scripts/requirements-wan22-cuda.txt b/scripts/requirements-wan22-cuda.txt
index 00eb28a67e..0d3d09c647 100644
--- a/scripts/requirements-wan22-cuda.txt
+++ b/scripts/requirements-wan22-cuda.txt
@@ -1,4 +1,4 @@
-diffusers==0.36.0
+diffusers==0.38.0
 transformers>=4.49,<5
 accelerate>=1.2,<2
 huggingface-hub>=0.27,<2