diff --git a/build-aux/flatpak/org.gnome.Loupe.Devel.json b/build-aux/flatpak/org.gnome.Loupe.Devel.json
index 3a3ff16..569589b 100644
--- a/build-aux/flatpak/org.gnome.Loupe.Devel.json
+++ b/build-aux/flatpak/org.gnome.Loupe.Devel.json
@@ -5,7 +5,7 @@
     "sdk" : "org.gnome.Sdk",
     "sdk-extensions" : [
         "org.freedesktop.Sdk.Extension.rust-stable",
-        "org.freedesktop.Sdk.Extension.llvm14"
+        "org.freedesktop.Sdk.Extension.llvm16"
     ],
     "command" : "loupe",
     "finish-args" : [
@@ -21,7 +21,7 @@
         "--filesystem=xdg-run/gvfsd"
     ],
     "build-options" : {
-        "append-path" : "/usr/lib/sdk/rust-stable/bin:/usr/lib/sdk/llvm14/bin",
+        "append-path" : "/usr/lib/sdk/rust-stable/bin:/usr/lib/sdk/llvm16/bin",
         "build-args" : [
             "--share=network"
         ],