diff --git a/library/train_util.py b/library/train_util.py
index c68eda654..ac9dd518e 100644
--- a/library/train_util.py
+++ b/library/train_util.py
@@ -3297,7 +3297,7 @@ def int_or_float(value):
         "--optimizer_type",
         type=str,
         default="",
-        help="Optimizer to use / オプティマイザの種類: AdamW (default), AdamW8bit, PagedAdamW, PagedAdamW8bit, PagedAdamW32bit, Lion8bit, PagedLion8bit, Lion, SGDNesterov, SGDNesterov8bit, DAdaptation(DAdaptAdamPreprint), DAdaptAdaGrad, DAdaptAdam, DAdaptAdan, DAdaptAdanIP, DAdaptLion, DAdaptSGD, AdaFactor",
+        help="Optimizer to use / オプティマイザの種類: AdamW (default), AdamW8bit, PagedAdamW, PagedAdamW8bit, PagedAdamW32bit, Lion8bit, PagedLion8bit, Lion, AdEMAMix8bit, PagedAdEMAMix8bit, SGDNesterov, SGDNesterov8bit, DAdaptation(DAdaptAdamPreprint), DAdaptAdaGrad, DAdaptAdam, DAdaptAdan, DAdaptAdanIP, DAdaptLion, DAdaptSGD, AdaFactor",
     )
 
     # backward compatibility
@@ -4410,7 +4410,7 @@ def task():
 
 
 def get_optimizer(args, trainable_params, model=None):
-    # "Optimizer to use: AdamW, AdamW8bit, Lion, SGDNesterov, SGDNesterov8bit, PagedAdamW, PagedAdamW8bit, PagedAdamW32bit, Lion8bit, PagedLion8bit, DAdaptation(DAdaptAdamPreprint), DAdaptAdaGrad, DAdaptAdam, DAdaptAdan, DAdaptAdanIP, DAdaptLion, DAdaptSGD, Adafactor"
+    # "Optimizer to use: AdamW, AdamW8bit, Lion, SGDNesterov, SGDNesterov8bit, PagedAdamW, PagedAdamW8bit, PagedAdamW32bit, Lion8bit, PagedLion8bit, AdEMAMix8bit, PagedAdEMAMix8bit, DAdaptation(DAdaptAdamPreprint), DAdaptAdaGrad, DAdaptAdam, DAdaptAdan, DAdaptAdanIP, DAdaptLion, DAdaptSGD, Adafactor"
 
     optimizer_type = args.optimizer_type
     if args.use_8bit_adam:
@@ -4528,7 +4528,22 @@ def get_optimizer(args, trainable_params, model=None):
                 raise AttributeError(
                     "No PagedLion8bit. The version of bitsandbytes installed seems to be old. Please install 0.39.0 or later. / PagedLion8bitが定義されていません。インストールされているbitsandbytesのバージョンが古いようです。0.39.0以上をインストールしてください"
                 )
-
+        elif optimizer_type == "Ademamix8bit".lower():
+            logger.info(f"use 8-bit Ademamix optimizer | {optimizer_kwargs}")
+            try:
+                optimizer_class = bnb.optim.AdEMAMix8bit
+            except AttributeError:
+                raise AttributeError(
+                    "No Ademamix8bit. The version of bitsandbytes installed seems to be old. Please install 0.44.0 or later. / Ademamix8bitが定義されていません。インストールされているbitsandbytesのバージョンが古いようです。0.39.0以上をインストールしてください"
+                )
+        elif optimizer_type == "PagedAdemamix8bit".lower():
+            logger.info(f"use 8-bit PagedAdemamix optimizer | {optimizer_kwargs}")
+            try:
+                optimizer_class = bnb.optim.PagedAdEMAMix8bit
+            except AttributeError:
+                raise AttributeError(
+                    "No PagedAdemamix8bit. The version of bitsandbytes installed seems to be old. Please install 0.44.0 or later. / PagedAdemamix8bitが定義されていません。インストールされているbitsandbytesのバージョンが古いようです。0.39.0以上をインストールしてください"
+                )
         optimizer = optimizer_class(trainable_params, lr=lr, **optimizer_kwargs)
 
     elif optimizer_type == "PagedAdamW".lower():
diff --git a/requirements.txt b/requirements.txt
index 91145d91f..634a09000 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ ftfy==6.1.1
 opencv-python==4.8.1.78
 einops==0.7.0
 pytorch-lightning==1.9.0
-bitsandbytes==0.43.3
+bitsandbytes==0.44.0
 prodigyopt==1.0
 lion-pytorch==0.0.6
 schedulefree==1.2.7