diff --git a/build-aux/dev.bragefuglseth.Fretboard.Devel.json b/build-aux/dev.bragefuglseth.Fretboard.Devel.json
index 417c529..80ded3c 100644
--- a/build-aux/dev.bragefuglseth.Fretboard.Devel.json
+++ b/build-aux/dev.bragefuglseth.Fretboard.Devel.json
@@ -1,7 +1,7 @@
 {
     "app-id" : "dev.bragefuglseth.Fretboard.Devel",
     "runtime" : "org.gnome.Platform",
-    "runtime-version" : "master",
+    "runtime-version" : "46",
     "sdk" : "org.gnome.Sdk",
     "sdk-extensions" : [
         "org.freedesktop.Sdk.Extension.rust-stable"