diff --git a/comfy/ldm/cosmos/predict2.py b/comfy/ldm/cosmos/predict2.py
index 2268bff38..30a36ad49 100644
--- a/comfy/ldm/cosmos/predict2.py
+++ b/comfy/ldm/cosmos/predict2.py
@@ -15,15 +15,6 @@ import comfy.patcher_extension
 from comfy.ldm.modules.attention import optimized_attention
 import comfy.ldm.common_dit
 
-def apply_rotary_pos_emb(
-    t: torch.Tensor,
-    freqs: torch.Tensor,
-) -> torch.Tensor:
-    t_ = t.reshape(*t.shape[:-1], 2, -1).movedim(-2, -1).unsqueeze(-2).float()
-    t_out = freqs[..., 0] * t_[..., 0] + freqs[..., 1] * t_[..., 1]
-    t_out = t_out.movedim(-1, -2).reshape(*t.shape).type_as(t)
-    return t_out
-
 
 # ---------------------- Feed Forward Network -----------------------
 class GPT2FeedForward(nn.Module):
@@ -173,8 +164,7 @@ class Attention(nn.Module):
             k = self.k_norm(k)
             v = self.v_norm(v)
             if self.is_selfattn and rope_emb is not None:  # only apply to self-attention!
-                q = apply_rotary_pos_emb(q, rope_emb)
-                k = apply_rotary_pos_emb(k, rope_emb)
+                q, k = comfy.quant_ops.ck.apply_rope_split_half(q, k, rope_emb)
             return q, k, v
 
         q, k, v = apply_norm_and_rotary_pos_emb(q, k, v, rope_emb)
diff --git a/requirements.txt b/requirements.txt
index 0617667e1..7ae16eb5b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ alembic
 SQLAlchemy>=2.0.0
 filelock
 av>=16.0.0
-comfy-kitchen==0.2.9
+comfy-kitchen==0.2.10
 comfy-aimdo==0.4.5
 requests
 simpleeval>=1.0.0