diff --git a/rust-toolchain/flake.lock b/rust-toolchain/flake.lock
index 055de54..42064fe 100644
--- a/rust-toolchain/flake.lock
+++ b/rust-toolchain/flake.lock
@@ -46,11 +46,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1707185459,
-        "narHash": "sha256-+GdqwnFZQ9G6pOrTGA+XzD4hg+DZZwkx2/x46fuNkL8=",
+        "lastModified": 1707358215,
+        "narHash": "sha256-Nuhi8KEJ2e+2nTimSyEIPqN5eh7ECVWd+AnPXG6L+SY=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "be473291b92e4e84e84a1e04e57481c848060c6c",
+        "rev": "dd917bb1b67fc049fd56fe6de70266a9ab74a4aa",
         "type": "github"
       },
       "original": {
diff --git a/rust/flake.lock b/rust/flake.lock
index 055de54..42064fe 100644
--- a/rust/flake.lock
+++ b/rust/flake.lock
@@ -46,11 +46,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1707185459,
-        "narHash": "sha256-+GdqwnFZQ9G6pOrTGA+XzD4hg+DZZwkx2/x46fuNkL8=",
+        "lastModified": 1707358215,
+        "narHash": "sha256-Nuhi8KEJ2e+2nTimSyEIPqN5eh7ECVWd+AnPXG6L+SY=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "be473291b92e4e84e84a1e04e57481c848060c6c",
+        "rev": "dd917bb1b67fc049fd56fe6de70266a9ab74a4aa",
         "type": "github"
       },
       "original": {
diff --git a/rust/flake.nix b/rust/flake.nix
index 5c76dc3..8f8bbc2 100644
--- a/rust/flake.nix
+++ b/rust/flake.nix
@@ -45,6 +45,7 @@
         default = pkgs.mkShell {
           packages = with pkgs; [
             rustToolchain
+            rustup
             openssl
             pkg-config
             cargo-deny
diff --git a/rustpython/flake.lock b/rustpython/flake.lock
index 055de54..42064fe 100644
--- a/rustpython/flake.lock
+++ b/rustpython/flake.lock
@@ -46,11 +46,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1707185459,
-        "narHash": "sha256-+GdqwnFZQ9G6pOrTGA+XzD4hg+DZZwkx2/x46fuNkL8=",
+        "lastModified": 1707358215,
+        "narHash": "sha256-Nuhi8KEJ2e+2nTimSyEIPqN5eh7ECVWd+AnPXG6L+SY=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "be473291b92e4e84e84a1e04e57481c848060c6c",
+        "rev": "dd917bb1b67fc049fd56fe6de70266a9ab74a4aa",
         "type": "github"
       },
       "original": {