diff --git a/nix/pkgs/jj.nix b/nix/pkgs/jj.nix
index b82454a070..3b60a9e43b 100644
--- a/nix/pkgs/jj.nix
+++ b/nix/pkgs/jj.nix
@@ -1,12 +1,12 @@
 { pkgs, ... }:
 
 let
-  rev = "v0.15.1";
+  rev = "v0.22.0";
   src = (pkgs.fetchFromGitHub {
     owner = "martinvonz";
     repo = "jj";
     inherit rev;
-    hash = "sha256-yppQIffjpyQ2nqhiZbV2pSMQJx8srmHjAk+UClCQfRw=";
+    hash = "sha256-GbKmX1Ev/8di3A1XT5ZIRjzn2zP6DMye2NpA26PGVIs=";
   }) // {
     shortRev = rev;
   };
@@ -22,13 +22,12 @@ let
   rust-overlay-src = (pkgs.fetchFromGitHub {
     owner = "oxalica";
     repo = "rust-overlay";
-    rev = "78503e9199010a4df714f29a4f9c00eb2ccae071";
-    hash = "sha256:0xhrcahhlm8bz5gaka0rni9g20ypnmckmh0nz96xn5jb4a913j9z";
+    rev = "2b00881d2ff72174cffdc007238cb6bedd6e1d8e";
+    hash = "sha256-+OB00N6Yql/ZRQQkQ0PNnxfW2tH89DHnv29hBS7tXMM=";
   });
   rust-overlay = (import "${rust-overlay-src}/flake.nix").outputs {
     self = rust-overlay;
     nixpkgs = pkgs;
-    flake-utils = flake-utils;
   };
   flake = (import "${src}/flake.nix").outputs {
     self = flake;