diff --git a/overlay/mruby-builder/mrbgems/mruby-lvgui/default.nix b/overlay/mruby-builder/mrbgems/mruby-lvgui/default.nix
index 07218ad1..8c2133b3 100644
--- a/overlay/mruby-builder/mrbgems/mruby-lvgui/default.nix
+++ b/overlay/mruby-builder/mrbgems/mruby-lvgui/default.nix
@@ -18,8 +18,8 @@ mrbgems.mkGem {
   src = fetchFromGitHub {
     repo = "mruby-lvgui";
     owner = "mobile-nixos";
-    rev = "07f6cce17a9819ec9c6da2adea012e3033cfd7b6";
-    sha256 = "0c47vv2slwh2n3996aw219likicpsmlk47ayx8xcl49kpmq674ns";
+    rev = "c82c82e5326540faa2ac47259adbf6254cd1994f";
+    sha256 = "11xpa1fvnv6h0wkjj7h5l4vsyjvbffz4mdcxcdv21nxsdgrsdzdl";
   };
 
   gemBuildInputs = [
diff --git a/overlay/mruby-builder/mrbgems/mruby-lvgui/lvgui.nix b/overlay/mruby-builder/mrbgems/mruby-lvgui/lvgui.nix
index 070242ec..426e9ae2 100644
--- a/overlay/mruby-builder/mrbgems/mruby-lvgui/lvgui.nix
+++ b/overlay/mruby-builder/mrbgems/mruby-lvgui/lvgui.nix
@@ -61,13 +61,13 @@ let
 in
   stdenv.mkDerivation {
     pname = "lvgui";
-    version = "2020-11-01";
+    version = "2020-11-20";
 
     src = fetchFromGitHub {
       repo = "lvgui";
       owner = "mobile-nixos";
-      rev = "4f8af498a81bd669d42ce3b370fc66fe4ec681b5";
-      sha256 = "00rik18c3c3l4glzh2azg90cwvp56s4wnski86rsn00bxslia5ma";
+      rev = "c94c3916012f5615af027389e77e7a974cc3e634";
+      sha256 = "16dfdky5v72jqs9v22h1k73g74bnif6fg52vhxw2k8sh6mw1cmzp";
     };
 
     # Document `LVGL_ENV_SIMULATOR` in the built headers.