diff --git a/Cargo.lock b/Cargo.lock
index 6baadf4..c532426 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -64,9 +64,9 @@ dependencies = [
 
 [[package]]
 name = "fn_abi"
-version = "0.1.2"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13ba31b3c3e35974ab9d1f652867eff7dddc1b0a85d5005f0a9bdb538232cbb3"
+checksum = "451b828bd3c5f19949222834f58b38c3670604dcaa5f2b7aec50c0cd58f34900"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -109,7 +109,7 @@ dependencies = [
 
 [[package]]
 name = "gmod"
-version = "3.0.1"
+version = "4.0.1"
 dependencies = [
  "cfg_table",
  "cstr",
diff --git a/gmod/Cargo.toml b/gmod/Cargo.toml
index 4751108..bfcc76e 100644
--- a/gmod/Cargo.toml
+++ b/gmod/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "gmod"
-version = "3.0.1"
+version = "4.0.1"
 authors = ["William Venner <william@venner.io>"]
 edition = "2018"
 license = "MIT"
@@ -19,7 +19,7 @@ ctor = "0"
 gmod-macros = { version = "0.1.0", path = "../gmod-macros" }
 
 fn_type_alias = "0"
-fn_abi = "0"
+fn_abi = "2"
 cfg_table = "0"
 null_fn = "0"
 fn_has_this = "0"