diff --git a/bitsandbytes/optim/lion.py b/bitsandbytes/optim/lion.py
index cd2a9da..a2fb6af 100644
--- a/bitsandbytes/optim/lion.py
+++ b/bitsandbytes/optim/lion.py
@@ -9,30 +9,21 @@ class Lion(Optimizer1State):
     def __init__(
         self,
         params,
-        lr=1e-2,
-        alpha=0.99,
-        eps=1e-8,
+        lr=1e-4,
+        betas=(0.9, 0.99),
         weight_decay=0,
-        momentum=0,
-        centered=False,
         optim_bits=32,
         args=None,
         min_8bit_size=4096,
         percentile_clipping=100,
         block_wise=True,
     ):
-        if alpha == 0:
-            raise NotImplementedError(
-                "RMSprop with alpha==0.0 is not supported!"
-            )
-        if centered:
-            raise NotImplementedError("Centered RMSprop is not supported!")
         super().__init__(
             "rmsprop",
             params,
             lr,
-            (alpha, momentum),
-            eps,
+            betas,
+            0.,
             weight_decay,
             optim_bits,
             args,
@@ -46,29 +37,20 @@ class Lion8bit(Optimizer1State):
     def __init__(
         self,
         params,
-        lr=1e-2,
-        alpha=0.99,
-        eps=1e-8,
+        lr=1e-4,
+        betas=(0.9, 0.99),
         weight_decay=0,
-        momentum=0,
-        centered=False,
         args=None,
         min_8bit_size=4096,
         percentile_clipping=100,
         block_wise=True,
     ):        
-        if alpha == 0:
-            raise NotImplementedError(
-                "RMSprop with alpha==0.0 is not supported!"
-            )
-        if centered:
-            raise NotImplementedError("Centered RMSprop is not supported!")
         super().__init__(
             "rmsprop",
             params,
             lr,
-            (alpha, momentum),
-            eps,
+            betas,
+            0.,
             weight_decay,
             8,
             args,
@@ -82,30 +64,20 @@ class Lion32bit(Optimizer1State):
     def __init__(
         self,
         params,
-        lr=1e-2,
-        alpha=0.99,
-        eps=1e-8,
+        lr=1e-4,
+        betas=(0.9, 0.99),
         weight_decay=0,
-        momentum=0,
-        centered=False,
         args=None,
         min_8bit_size=4096,
         percentile_clipping=100,
         block_wise=True,
     ):
-
-        if alpha == 0:
-            raise NotImplementedError(
-                "RMSprop with alpha==0.0 is not supported!"
-            )
-        if centered:
-            raise NotImplementedError("Centered RMSprop is not supported!")
         super().__init__(
             "rmsprop",
             params,
             lr,
-            (alpha, momentum),
-            eps,
+            betas,
+            0.,
             weight_decay,
             32,
             args,