diff --git a/inno/MCXStudio.iss b/inno/MCXStudio.iss
index be8338e0..e773a89b 100755
--- a/inno/MCXStudio.iss
+++ b/inno/MCXStudio.iss
@@ -40,6 +40,7 @@ SolidCompression=yes
 WizardStyle=modern
 ChangesEnvironment=true
 SetupIconFile=mcxstudio_2020.ico
+ArchitecturesInstallIn64BitMode=x64
 
 ;;----------------------------------------------------------------------
 
diff --git a/pymcx b/pymcx
index e957869b..1bc4c896 160000
--- a/pymcx
+++ b/pymcx
@@ -1 +1 @@
-Subproject commit e957869b5761d76e12a8e7e665171946828c2469
+Subproject commit 1bc4c8961b2446619b2f0e04c7fc8ee030920f8a