diff --git a/pyproject.toml b/pyproject.toml
index 8ed31a0..84f517c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,16 +6,17 @@ license = { file = "LICENSE" }
 authors = [{ name = "Beinsezii" }]
 requires-python = ">= 3.12"
 dependencies = [
-    "accelerate>=1.8.1",
-    "diffusers>=0.36",
-    "huggingface-hub>=0.33.4",
-    "peft>=0.17.0",
-    "protobuf>=6.31.1",
-    "sentencepiece>=0.2.0",
+    "accelerate>=1.13",
+    "diffusers>=0.38",
+    "peft>=0.19",
+    "protobuf>=7",
+    "safetensors>=0.8.0rc0",
+    "sentencepiece>=0.2",
     "skrample[all]==0.6.*",
     "torch>=2.9.1",
-    "torchao>=0.15.0",
-    "transformers>=4.53.2,<5",
+    "torchao>=0.15",
+    "torchvision>=0.24.1",
+    "transformers>5.8,<6",
 ]
 
 [project.optional-dependencies]
diff --git a/quickdif.py b/quickdif.py
index 81074e9..662bd8e 100644
--- a/quickdif.py
+++ b/quickdif.py
@@ -623,7 +623,7 @@ class AttentionBackend(enum.StrEnum):
     FlashH = enum.auto()
     FlashVL = enum.auto()
     FlashVLH = enum.auto()
-    # Flash4H = enum.auto()
+    Flash4H = enum.auto()
     Flex = enum.auto()
     Native = enum.auto()
     Sage = enum.auto()
@@ -646,8 +646,8 @@ def backend(self) -> "AttentionBackendName | None":
                 return AttentionBackendName.FLASH_VARLEN
             case self.FlashVLH:
                 return AttentionBackendName.FLASH_VARLEN_HUB
-            # case self.Flash4H:
-            #     return AttentionBackendName.FLASH_4_HUB
+            case self.Flash4H:
+                return AttentionBackendName.FLASH_4_HUB
             case self.Flex:
                 return AttentionBackendName.FLEX
             case self.Native: