diff --git a/.changeset/wise-paws-compete.md b/.changeset/wise-paws-compete.md
new file mode 100644
index 00000000..f680dd9d
--- /dev/null
+++ b/.changeset/wise-paws-compete.md
@@ -0,0 +1,5 @@
+---
+"permissionless": patch
+---
+
+Fixed support viem>=2.21.59
diff --git a/packages/permissionless/accounts/safe/toSafeSmartAccount.ts b/packages/permissionless/accounts/safe/toSafeSmartAccount.ts
index b9c6dc72..2e291dfa 100644
--- a/packages/permissionless/accounts/safe/toSafeSmartAccount.ts
+++ b/packages/permissionless/accounts/safe/toSafeSmartAccount.ts
@@ -1211,8 +1211,8 @@ export async function toSafeSmartAccount<
     let _multiSendCallOnlyAddress: Address | undefined = undefined
     let safeModules: Address[] | undefined = undefined
     let setupTransactions: {
-        to: `0x${string}`
-        data: `0x${string}`
+        to: Address
+        data: Hex
         value: bigint
     }[] = []
     let validators: { address: Address; context: Address }[] = []
diff --git a/packages/permissionless/accounts/thirdweb/utils/encodeCallData.ts b/packages/permissionless/accounts/thirdweb/utils/encodeCallData.ts
index 4e262259..fa31df25 100644
--- a/packages/permissionless/accounts/thirdweb/utils/encodeCallData.ts
+++ b/packages/permissionless/accounts/thirdweb/utils/encodeCallData.ts
@@ -1,10 +1,10 @@
-import { encodeFunctionData } from "viem"
+import { type Address, type Hex, encodeFunctionData } from "viem"
 
 export const encodeCallData = async (
     calls: readonly {
-        to: `0x${string}`
+        to: Address
         value?: bigint | undefined
-        data?: `0x${string}` | undefined
+        data?: Hex | undefined
     }[]
 ) => {
     if (calls.length > 1) {
diff --git a/packages/permissionless/accounts/trust/utils/encodeCallData.ts b/packages/permissionless/accounts/trust/utils/encodeCallData.ts
index 4e262259..fa31df25 100644
--- a/packages/permissionless/accounts/trust/utils/encodeCallData.ts
+++ b/packages/permissionless/accounts/trust/utils/encodeCallData.ts
@@ -1,10 +1,10 @@
-import { encodeFunctionData } from "viem"
+import { type Address, type Hex, encodeFunctionData } from "viem"
 
 export const encodeCallData = async (
     calls: readonly {
-        to: `0x${string}`
+        to: Address
         value?: bigint | undefined
-        data?: `0x${string}` | undefined
+        data?: Hex | undefined
     }[]
 ) => {
     if (calls.length > 1) {
diff --git a/packages/permissionless/actions/erc7579.ts b/packages/permissionless/actions/erc7579.ts
index 68fa1e09..6fe38307 100644
--- a/packages/permissionless/actions/erc7579.ts
+++ b/packages/permissionless/actions/erc7579.ts
@@ -42,11 +42,11 @@ export type Erc7579Actions<TSmartAccount extends SmartAccount | undefined> = {
     accountId: (
         args?: GetSmartAccountParameter<TSmartAccount>
     ) => Promise<string>
-    installModule: <callsType extends readonly unknown[]>(
-        args: InstallModuleParameters<TSmartAccount, callsType>
+    installModule: (
+        args: InstallModuleParameters<TSmartAccount>
     ) => Promise<Hash>
-    installModules: <callsType extends readonly unknown[]>(
-        args: InstallModulesParameters<TSmartAccount, callsType>
+    installModules: (
+        args: InstallModulesParameters<TSmartAccount>
     ) => Promise<Hash>
     isModuleInstalled: (
         args: IsModuleInstalledParameters<TSmartAccount>
@@ -57,11 +57,11 @@ export type Erc7579Actions<TSmartAccount extends SmartAccount | undefined> = {
     supportsModule: (
         args: SupportsModuleParameters<TSmartAccount>
     ) => Promise<boolean>
-    uninstallModule: <callsType extends readonly unknown[]>(
-        args: UninstallModuleParameters<TSmartAccount, callsType>
+    uninstallModule: (
+        args: UninstallModuleParameters<TSmartAccount>
     ) => Promise<Hash>
-    uninstallModules: <callsType extends readonly unknown[]>(
-        args: UninstallModulesParameters<TSmartAccount, callsType>
+    uninstallModules: (
+        args: UninstallModulesParameters<TSmartAccount>
     ) => Promise<Hash>
 }
 
diff --git a/packages/permissionless/actions/erc7579/installModule.ts b/packages/permissionless/actions/erc7579/installModule.ts
index e34559c3..5eaaf28e 100644
--- a/packages/permissionless/actions/erc7579/installModule.ts
+++ b/packages/permissionless/actions/erc7579/installModule.ts
@@ -1,9 +1,8 @@
-import type { Address, Client, Hex, Narrow, OneOf } from "viem"
+import type { Address, Client, Hex, OneOf } from "viem"
 import {
     type GetSmartAccountParameter,
     type PaymasterActions,
     type SmartAccount,
-    type UserOperationCalls,
     sendUserOperation
 } from "viem/account-abstraction"
 import { getAction, parseAccount } from "viem/utils"
@@ -12,15 +11,18 @@ import { encodeInstallModule } from "../../utils/encodeInstallModule.js"
 import type { ModuleType } from "./supportsModule.js"
 
 export type InstallModuleParameters<
-    TSmartAccount extends SmartAccount | undefined,
-    calls extends readonly unknown[]
+    TSmartAccount extends SmartAccount | undefined
 > = GetSmartAccountParameter<TSmartAccount> & {
     type: ModuleType
     address: Address
     maxFeePerGas?: bigint
     maxPriorityFeePerGas?: bigint
     nonce?: bigint
-    calls?: UserOperationCalls<Narrow<calls>>
+    calls?: readonly {
+        to: Address
+        value?: bigint | undefined
+        data?: Hex | undefined
+    }[]
     paymaster?:
         | Address
         | true
@@ -46,12 +48,9 @@ export type InstallModuleParameters<
           }
     >
 
-export async function installModule<
-    TSmartAccount extends SmartAccount | undefined,
-    calls extends readonly unknown[]
->(
+export function installModule<TSmartAccount extends SmartAccount | undefined>(
     client: Client,
-    parameters: InstallModuleParameters<TSmartAccount, calls>
+    parameters: InstallModuleParameters<TSmartAccount>
 ): Promise<Hex> {
     const {
         account: account_ = client.account,
@@ -85,11 +84,7 @@ export async function installModule<
                 account,
                 modules: [{ address, context: context ?? initData, type }]
             }),
-            ...((calls ?? []) as readonly {
-                to: `0x${string}`
-                value: bigint
-                data: `0x${string}`
-            }[])
+            ...(calls ?? [])
         ],
         paymaster,
         paymasterContext,
diff --git a/packages/permissionless/actions/erc7579/installModules.ts b/packages/permissionless/actions/erc7579/installModules.ts
index c82d33ee..0b1dbb1a 100644
--- a/packages/permissionless/actions/erc7579/installModules.ts
+++ b/packages/permissionless/actions/erc7579/installModules.ts
@@ -1,8 +1,7 @@
-import type { Address, Chain, Client, Hex, Narrow, Transport } from "viem"
+import type { Address, Chain, Client, Hex, Transport } from "viem"
 import {
     type PaymasterActions,
     type SmartAccount,
-    type UserOperationCalls,
     sendUserOperation
 } from "viem/account-abstraction"
 import { getAction, parseAccount } from "viem/utils"
@@ -13,13 +12,16 @@ import {
 } from "../../utils/encodeInstallModule.js"
 
 export type InstallModulesParameters<
-    TSmartAccount extends SmartAccount | undefined,
-    calls extends readonly unknown[]
+    TSmartAccount extends SmartAccount | undefined
 > = EncodeInstallModuleParameters<TSmartAccount> & {
     maxFeePerGas?: bigint
     maxPriorityFeePerGas?: bigint
     nonce?: bigint
-    calls?: UserOperationCalls<Narrow<calls>>
+    calls?: readonly {
+        to: Address
+        value?: bigint | undefined
+        data?: Hex | undefined
+    }[]
     paymaster?:
         | Address
         | true
@@ -39,11 +41,10 @@ export type InstallModulesParameters<
 }
 
 export async function installModules<
-    TSmartAccount extends SmartAccount | undefined,
-    calls extends readonly unknown[]
+    TSmartAccount extends SmartAccount | undefined
 >(
     client: Client<Transport, Chain | undefined, TSmartAccount>,
-    parameters: InstallModulesParameters<TSmartAccount, calls>
+    parameters: InstallModulesParameters<TSmartAccount>
 ): Promise<Hex> {
     const {
         account: account_ = client.account,
@@ -73,11 +74,7 @@ export async function installModules<
                 account,
                 modules
             }),
-            ...((calls ?? []) as readonly {
-                to: `0x${string}`
-                value: bigint
-                data: `0x${string}`
-            }[])
+            ...(calls ?? [])
         ],
         paymaster,
         paymasterContext,
diff --git a/packages/permissionless/actions/erc7579/uninstallModule.ts b/packages/permissionless/actions/erc7579/uninstallModule.ts
index d2b55f6f..88896c14 100644
--- a/packages/permissionless/actions/erc7579/uninstallModule.ts
+++ b/packages/permissionless/actions/erc7579/uninstallModule.ts
@@ -1,17 +1,8 @@
-import type {
-    Address,
-    Chain,
-    Client,
-    Hex,
-    Narrow,
-    OneOf,
-    Transport
-} from "viem"
+import type { Address, Chain, Client, Hex, OneOf, Transport } from "viem"
 import {
     type GetSmartAccountParameter,
     type PaymasterActions,
     type SmartAccount,
-    type UserOperationCalls,
     sendUserOperation
 } from "viem/account-abstraction"
 import { getAction } from "viem/utils"
@@ -21,15 +12,18 @@ import { encodeUninstallModule } from "../../utils/encodeUninstallModule.js"
 import type { ModuleType } from "./supportsModule.js"
 
 export type UninstallModuleParameters<
-    TSmartAccount extends SmartAccount | undefined,
-    calls extends readonly unknown[]
+    TSmartAccount extends SmartAccount | undefined
 > = GetSmartAccountParameter<TSmartAccount> & {
     type: ModuleType
     address: Address
     maxFeePerGas?: bigint
     maxPriorityFeePerGas?: bigint
     nonce?: bigint
-    calls?: UserOperationCalls<Narrow<calls>>
+    calls?: readonly {
+        to: Address
+        value?: bigint | undefined
+        data?: Hex | undefined
+    }[]
     paymaster?:
         | Address
         | true
@@ -56,11 +50,10 @@ export type UninstallModuleParameters<
     >
 
 export async function uninstallModule<
-    TSmartAccount extends SmartAccount | undefined,
-    calls extends readonly unknown[]
+    TSmartAccount extends SmartAccount | undefined
 >(
     client: Client<Transport, Chain | undefined, TSmartAccount>,
-    parameters: UninstallModuleParameters<TSmartAccount, calls>
+    parameters: UninstallModuleParameters<TSmartAccount>
 ): Promise<Hex> {
     const {
         account: account_ = client.account,
@@ -94,11 +87,7 @@ export async function uninstallModule<
                 account,
                 modules: [{ type, address, context: context ?? deInitData }]
             }),
-            ...((calls ?? []) as readonly {
-                to: `0x${string}`
-                value: bigint
-                data: `0x${string}`
-            }[])
+            ...(calls ?? [])
         ],
         paymaster,
         paymasterContext,
diff --git a/packages/permissionless/actions/erc7579/uninstallModules.ts b/packages/permissionless/actions/erc7579/uninstallModules.ts
index 7ca3e935..448fa3f1 100644
--- a/packages/permissionless/actions/erc7579/uninstallModules.ts
+++ b/packages/permissionless/actions/erc7579/uninstallModules.ts
@@ -1,8 +1,7 @@
-import type { Address, Chain, Client, Hex, Narrow, Transport } from "viem"
+import type { Address, Chain, Client, Hex, Transport } from "viem"
 import {
     type PaymasterActions,
     type SmartAccount,
-    type UserOperationCalls,
     sendUserOperation
 } from "viem/account-abstraction"
 import { getAction } from "viem/utils"
@@ -14,13 +13,16 @@ import {
 } from "../../utils/encodeUninstallModule.js"
 
 export type UninstallModulesParameters<
-    TSmartAccount extends SmartAccount | undefined,
-    calls extends readonly unknown[]
+    TSmartAccount extends SmartAccount | undefined
 > = EncodeUninstallModuleParameters<TSmartAccount> & {
     maxFeePerGas?: bigint
     maxPriorityFeePerGas?: bigint
     nonce?: bigint
-    calls?: UserOperationCalls<Narrow<calls>>
+    calls?: readonly {
+        to: Address
+        value?: bigint | undefined
+        data?: Hex | undefined
+    }[]
     paymaster?:
         | Address
         | true
@@ -40,11 +42,10 @@ export type UninstallModulesParameters<
 }
 
 export async function uninstallModules<
-    TSmartAccount extends SmartAccount | undefined,
-    calls extends readonly unknown[]
+    TSmartAccount extends SmartAccount | undefined
 >(
     client: Client<Transport, Chain | undefined, TSmartAccount>,
-    parameters: UninstallModulesParameters<TSmartAccount, calls>
+    parameters: UninstallModulesParameters<TSmartAccount>
 ): Promise<Hex> {
     const {
         account: account_ = client.account,
@@ -75,11 +76,7 @@ export async function uninstallModules<
                 account,
                 modules
             }),
-            ...((calls ?? []) as readonly {
-                to: `0x${string}`
-                value: bigint
-                data: `0x${string}`
-            }[])
+            ...(calls ?? [])
         ],
         paymaster,
         paymasterContext,
diff --git a/packages/permissionless/experimental/pimlico/utils/prepareUserOperationForErc20Paymaster.ts b/packages/permissionless/experimental/pimlico/utils/prepareUserOperationForErc20Paymaster.ts
index e4ea72ce..6fa037a1 100644
--- a/packages/permissionless/experimental/pimlico/utils/prepareUserOperationForErc20Paymaster.ts
+++ b/packages/permissionless/experimental/pimlico/utils/prepareUserOperationForErc20Paymaster.ts
@@ -3,6 +3,7 @@ import {
     type Chain,
     type Client,
     type ContractFunctionParameters,
+    type Hex,
     RpcError,
     type Transport,
     encodeFunctionData,
@@ -19,7 +20,6 @@ import {
     type PrepareUserOperationReturnType,
     type SmartAccount,
     type UserOperation,
-    type UserOperationCall,
     getPaymasterData as getPaymasterData_,
     prepareUserOperation
 } from "viem/account-abstraction"
@@ -279,7 +279,11 @@ export const prepareUserOperationForErc20Paymaster =
             userOperation.callData = await account.encodeCalls(
                 finalCalls.map((call_) => {
                     const call = call_ as
-                        | UserOperationCall
+                        | {
+                              to: Address
+                              value: bigint
+                              data: Hex
+                          }
                         | (ContractFunctionParameters & {
                               to: Address
                               value: bigint
@@ -289,8 +293,8 @@ export const prepareUserOperationForErc20Paymaster =
                             data: encodeFunctionData(call),
                             to: call.to,
                             value: call.value
-                        } as UserOperationCall
-                    return call as UserOperationCall
+                        }
+                    return call
                 })
             )
             parameters.calls = finalCalls