diff --git a/programs/drift/src/instructions/user.rs b/programs/drift/src/instructions/user.rs
index 7811fa2d1..a80e51ac1 100644
--- a/programs/drift/src/instructions/user.rs
+++ b/programs/drift/src/instructions/user.rs
@@ -239,6 +239,14 @@ pub fn handle_initialize_user<'c: 'info, 'info>(
         )?;
     }
 
+    if ctx.accounts.authority.key() != ctx.accounts.payer.key() {
+        validate!(
+            WHITELISTED_EXTERNAL_DEPOSITORS.contains(&ctx.accounts.payer.key()),
+            ErrorCode::DefaultError,
+            "Authority is not the payer"
+        )?;
+    }
+
     Ok(())
 }
 
@@ -274,6 +282,14 @@ pub fn handle_initialize_user_stats<'c: 'info, 'info>(
         ErrorCode::MaxNumberOfUsers
     )?;
 
+    if ctx.accounts.authority.key() != ctx.accounts.payer.key() {
+        validate!(
+            WHITELISTED_EXTERNAL_DEPOSITORS.contains(&ctx.accounts.payer.key()),
+            ErrorCode::DefaultError,
+            "Authority is not the payer"
+        )?;
+    }
+
     Ok(())
 }
 
@@ -4179,7 +4195,8 @@ pub struct InitializeUser<'info> {
     pub user_stats: AccountLoader<'info, UserStats>,
     #[account(mut)]
     pub state: Box<Account<'info, State>>,
-    pub authority: Signer<'info>,
+    /// CHECK: Just a normal authority account
+    pub authority: AccountInfo<'info>,
     #[account(mut)]
     pub payer: Signer<'info>,
     pub rent: Sysvar<'info, Rent>,
@@ -4198,7 +4215,8 @@ pub struct InitializeUserStats<'info> {
     pub user_stats: AccountLoader<'info, UserStats>,
     #[account(mut)]
     pub state: Box<Account<'info, State>>,
-    pub authority: Signer<'info>,
+    /// CHECK: Just a normal authority account
+    pub authority: AccountInfo<'info>,
     #[account(mut)]
     pub payer: Signer<'info>,
     pub rent: Sysvar<'info, Rent>,
diff --git a/sdk/src/idl/drift.json b/sdk/src/idl/drift.json
index fcd488872..71f928598 100644
--- a/sdk/src/idl/drift.json
+++ b/sdk/src/idl/drift.json
@@ -1,5 +1,5 @@
 {
-  "version": "2.150.0",
+  "version": "2.152.0",
   "name": "drift",
   "instructions": [
     {
@@ -23,7 +23,7 @@
         {
           "name": "authority",
           "isMut": false,
-          "isSigner": true
+          "isSigner": false
         },
         {
           "name": "payer",
@@ -73,7 +73,7 @@
         {
           "name": "authority",
           "isMut": false,
-          "isSigner": true
+          "isSigner": false
         },
         {
           "name": "payer",
@@ -11584,7 +11584,7 @@
           },
           {
             "name": "disableUpdatePerpBidAskTwap",
-            "type": "bool"
+            "type": "u8"
           },
           {
             "name": "pausedOperations",
@@ -16903,6 +16903,11 @@
             "defined": "SpotBankruptcyRecord"
           },
           "index": false
+        },
+        {
+          "name": "bitFlags",
+          "type": "u8",
+          "index": false
         }
       ]
     },