diff --git a/nix/home-manager/configuration/graphical-fullblown.nix b/nix/home-manager/configuration/graphical-fullblown.nix
index 442a5d8..e498f29 100644
--- a/nix/home-manager/configuration/graphical-fullblown.nix
+++ b/nix/home-manager/configuration/graphical-fullblown.nix
@@ -109,15 +109,14 @@ in {
       aspellDicts.de
       # skypeforlinux
       # pkgsUnstable.jitsi-meet-electron
-      thunderbird
+      thunderbird-115
+      # betterbird
 
       # FIXME: depends on insecure openssl 1.1.1t
       # kotatogram-desktop
       pkgsUnstable.tdesktop
       # TODO: remove or reuse this depending on whether waydroid signal works
-      # pkgsUnstable.signal-desktop
-
-      thunderbird
+      pkgsUnstable.signal-desktop
 
       # gnome.cheese
 
diff --git a/nix/home-manager/profiles/common.nix b/nix/home-manager/profiles/common.nix
index 3fb8e69..2f5b051 100644
--- a/nix/home-manager/profiles/common.nix
+++ b/nix/home-manager/profiles/common.nix
@@ -15,7 +15,6 @@
     allowUnfree = true;
 
     permittedInsecurePackages = [
-      "nix-2.15.3"
     ];
   };