diff --git a/pkgs/development/interpreters/luajit/2.0.nix b/pkgs/development/interpreters/luajit/2.0.nix
index afb5dd9c5b64..22ad9aa05f42 100644
--- a/pkgs/development/interpreters/luajit/2.0.nix
+++ b/pkgs/development/interpreters/luajit/2.0.nix
@@ -1,10 +1,10 @@
 { self, callPackage, lib }:
 callPackage ./default.nix {
   inherit self;
-  version = "2.0.5-2020-08-09";
-  rev = "e296f56";
+  version = "2.0.5-2020-09-27";
+  rev = "e8ec6fe";
   isStable = true;
-  sha256 = "0g4wvpmmrxj8ir6yi86gg93khy8ri7x4w091jihpxsmn670da21f";
+  sha256 = "0v7g216j0zrjp32nfjqqxzgxgvgbdx89h3x0djbqg3avsgxjwnbk";
   extraMeta = { # this isn't precise but it at least stops the useless Hydra build
     platforms = with lib; filter (p: p != "aarch64-linux")
       (platforms.linux ++ platforms.darwin);
diff --git a/pkgs/development/interpreters/luajit/2.1.nix b/pkgs/development/interpreters/luajit/2.1.nix
index cb0320c7c7cf..18b4d32574ab 100644
--- a/pkgs/development/interpreters/luajit/2.1.nix
+++ b/pkgs/development/interpreters/luajit/2.1.nix
@@ -1,8 +1,8 @@
 { self, callPackage }:
 callPackage ./default.nix {
   inherit self;
-  version = "2.1.0-2020-08-27";
-  rev = "ff1e72a";
+  version = "2.1.0-2020-09-30";
+  rev = "e9af1ab";
   isStable = false;
-  sha256 = "0rlh5y48jbxnamr3a5i3szzh7y9ycvq052rw6m82gdhrb1jlamdz";
+  sha256 = "081vrr4snr1c38cscbq1a8barv7abc9czqqlm4qlbdksa8g32bbj";
 }
diff --git a/pkgs/development/interpreters/luajit/default.nix b/pkgs/development/interpreters/luajit/default.nix
index 9658186b9c09..e0e15ca32750 100644
--- a/pkgs/development/interpreters/luajit/default.nix
+++ b/pkgs/development/interpreters/luajit/default.nix
@@ -11,7 +11,7 @@
 , enableFFI ? true
 , enableJIT ? true
 , enableJITDebugModule ? enableJIT
-, enableGC64 ? stdenv.hostPlatform.isAarch64
+, enableGC64 ? true
 , enable52Compat ? false
 , enableValgrindSupport ? false
 , valgrind ? null