diff --git a/pkgs/applications/editors/gnome-builder/default.nix b/pkgs/applications/editors/gnome-builder/default.nix
index 09684c7359f1..90dc13281593 100644
--- a/pkgs/applications/editors/gnome-builder/default.nix
+++ b/pkgs/applications/editors/gnome-builder/default.nix
@@ -19,7 +19,7 @@
 , libadwaita
 , libdex
 , libpanel
-, libpeas
+, libpeas2
 , libportal-gtk4
 , libxml2
 , meson
@@ -41,13 +41,13 @@
 
 stdenv.mkDerivation rec {
   pname = "gnome-builder";
-  version = "44.2";
+  version = "45.alpha";
 
   outputs = [ "out" "devdoc" ];
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
-    sha256 = "z6aJx40/AiMcp0cVV99MZIKASio08nHDXRqWLX8XKbA=";
+    sha256 = "deXuoLWcFYtIaxDmwU0hSwzrYxmKgzEr0pvp3UVQ7mE=";
   };
 
   patches = [
@@ -82,7 +82,7 @@ stdenv.mkDerivation rec {
     editorconfig-core-c
     flatpak
     libgit2-glib
-    libpeas
+    libpeas2
     libportal-gtk4
     vte-gtk4
     enchant