diff --git a/Pantograph/Version.lean b/Pantograph/Version.lean
index 2decbc1..81dceee 100644
--- a/Pantograph/Version.lean
+++ b/Pantograph/Version.lean
@@ -1,6 +1,6 @@
 namespace Pantograph
 
 @[export pantograph_version]
-def version := "0.2.19"
+def version := "0.2.22"
 
 end Pantograph
diff --git a/flake.nix b/flake.nix
index 91901d8..f49a331 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,6 +22,8 @@
     flake = {
     };
     systems = [
+      "aarch64-linux"
+      "aarch64-darwin"
       "x86_64-linux"
       "x86_64-darwin"
     ];