diff --git a/base.nix b/base.nix
index d319c29..5719ad8 100644
--- a/base.nix
+++ b/base.nix
@@ -16,6 +16,9 @@
   # Use the newest kernel.
   boot.kernelPackages = pkgs.linuxPackages_latest;
 
+  # Set a limit on the number of generations to include in boot
+  boot.loader.systemd-boot.configurationLimit = 20;
+
 
   # Enable networking
   networking.networkmanager.enable = true;
diff --git a/bootstrap.sh b/bootstrap.sh
index 884d94d..2e21df7 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -37,8 +37,8 @@ esac
 done
 
 echo "Setting up channels"
-sudo nix-channel --add https://nixos.org/channels/nixos-unstable nixos
-sudo nix-channel --add https://github.com/nix-community/home-manager/archive/master.tar.gz home-manager
+sudo nix-channel --add https://nixos.org/channels/nixos-23.11 nixos
+sudo nix-channel --add https://github.com/nix-community/home-manager/archive/release-23.11.tar.gz home-manager
 sudo nix-channel --update
 
 echo "Rebuilding the OS"
diff --git a/modules/jetbrains.nix b/modules/jetbrains.nix
index ccb64d1..81859f9 100644
--- a/modules/jetbrains.nix
+++ b/modules/jetbrains.nix
@@ -1,8 +1,13 @@
-{ pkgs, lib, ... }:
+{ config, pkgs, lib, ... }:
+let
+  unstable = import
+    (builtins.fetchTarball "https://github.com/nixos/nixpkgs/tarball/3a5eb38af0215cd697a78c25ececdab111f21388")
+    { config = config.nixpkgs.config; };
+in
 {
   environment.systemPackages = with pkgs.jetbrains; [
     pycharm-professional
-    rust-rover
+    unstable.jetbrains.rust-rover
   ];
 
   services.opensnitch.rules = {