diff --git a/.changelog/fix-simulate-revert-code.md b/.changelog/fix-simulate-revert-code.md
new file mode 100644
index 0000000000..467b5b51ea
--- /dev/null
+++ b/.changelog/fix-simulate-revert-code.md
@@ -0,0 +1,5 @@
+---
+reth-rpc-eth-types: patch
+---
+
+Updated `eth_simulateV1` revert error code from `-32000` to `3` to be consistent with `eth_call`, per [execution-apis#748](https://github.com/ethereum/execution-apis/pull/748).
diff --git a/crates/rpc/rpc-eth-types/src/simulate.rs b/crates/rpc/rpc-eth-types/src/simulate.rs
index 70c1267dc5..59d13a67c5 100644
--- a/crates/rpc/rpc-eth-types/src/simulate.rs
+++ b/crates/rpc/rpc-eth-types/src/simulate.rs
@@ -31,8 +31,10 @@ use revm::{
 
 /// Error code for execution reverted in `eth_simulateV1`.
 ///
-/// <https://github.com/ethereum/execution-apis>
-pub const SIMULATE_REVERT_CODE: i32 = -32000;
+/// Consistent with `eth_call` revert error code.
+///
+/// <https://github.com/ethereum/execution-apis/pull/748>
+pub const SIMULATE_REVERT_CODE: i32 = 3;
 
 /// Error code for VM execution errors (e.g., out of gas) in `eth_simulateV1`.
 ///