diff --git a/flake.nix b/flake.nix
index 6f383c7..0feeb81 100644
--- a/flake.nix
+++ b/flake.nix
@@ -52,8 +52,17 @@
             extensions = ["rustc-codegen-cranelift-preview"];
           }
         else pkgs.rust-bin.stable.latest.default;
+      rust_min =
+        if nightly
+        then
+          (pkgs.rust-bin.selectLatestNightlyWith (toolchain:
+              toolchain.minimal))
+          .override {
+            extensions = ["rustc-codegen-cranelift-preview"];
+          }
+        else pkgs.rust-bin.stable.latest.minimal;
 
-      craneLib = (crane.mkLib pkgs).overrideToolchain rust;
+      craneLib = (crane.mkLib pkgs).overrideToolchain rust_min;
 
       nativeBuildInputs = with pkgs; [
         pkg-config