diff --git a/gobject-introspection.yaml b/gobject-introspection.yaml
index 6733216cccd..e9463d7938b 100644
--- a/gobject-introspection.yaml
+++ b/gobject-introspection.yaml
@@ -1,7 +1,7 @@
 package:
   name: gobject-introspection
-  version: 1.79.0
-  epoch: 0
+  version: 1.78.1
+  epoch: 1
   description: Introspection system for GObject-based libraries
   copyright:
     - license: LGPL-2.0-or-later AND GPL-2.0-or-later AND MIT
@@ -47,7 +47,7 @@ environment:
 pipeline:
   - uses: fetch
     with:
-      expected-sha256: 2aed9cdcfb3d423cc608b122191eda5968a7c27094b15ccf2c00a4866a9cd943
+      expected-sha256: bd7babd99af7258e76819e45ba4a6bc399608fe762d83fde3cac033c50841bb4
       uri: https://download.gnome.org/sources/gobject-introspection/${{vars.mangled-package-version}}/gobject-introspection-${{package.version}}.tar.xz
 
   - uses: meson/configure