diff --git a/SUPPORTED_APIS.md b/SUPPORTED_APIS.md
index c02bf1b4..d7d7fc8f 100644
--- a/SUPPORTED_APIS.md
+++ b/SUPPORTED_APIS.md
@@ -41,7 +41,6 @@ The `status` options are:
 | `ANVIL` | `anvil_setBalance` | `SUPPORTED` | Modifies the balance of an account |
 | `ANVIL` | `anvil_setCode` | `SUPPORTED` | Sets the bytecode of a given account |
 | `ANVIL` | `anvil_setStorageAt` | `SUPPORTED` | Sets the storage value at a given key for a given account |
-| `ANVIL` | `anvil_setChainId` | `SUPPORTED` | Sets the chain id |
 | [`CONFIG`](#config-namespace) | [`config_getShowCalls`](#config_getshowcalls) | `SUPPORTED` | Gets the current value of `show_calls` that's originally set with `--show-calls` option |
 | [`CONFIG`](#config-namespace) | [`config_getShowOutputs`](#config_getshowoutputs) | `SUPPORTED` | Gets the current value of `show_outputs` that's originally set with `--show-outputs` option |
 | [`CONFIG`](#config-namespace) | [`config_getCurrentTimestamp`](#config_getcurrenttimestamp) | `SUPPORTED` | Gets the value of `current_timestamp` for the node |