diff --git a/pkgs/development/tools/rust/cargo-guppy/default.nix b/pkgs/development/tools/rust/cargo-guppy/default.nix
index 0a75839a89ad..a79f03c2859f 100644
--- a/pkgs/development/tools/rust/cargo-guppy/default.nix
+++ b/pkgs/development/tools/rust/cargo-guppy/default.nix
@@ -9,16 +9,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "cargo-guppy";
-  version = "unstable-2023-04-15";
+  version = "unstable-2023-06-19";
 
   src = fetchFromGitHub {
     owner = "guppy-rs";
     repo = "guppy";
-    rev = "e93f51ca56dc9cc310004931a906b6b486b93058";
-    sha256 = "sha256-kg1iWku+zAXG9cCYCD4rqKzKNtDt0hMCnE5QyhJpLq8=";
+    rev = "23b1c804cb4a6d9d38d093ca3400e90805d4c36c";
+    sha256 = "sha256-cKnu28L8tjndjtHuClLIpiwTzf6YoN37vw1sE7xrNzQ=";
   };
 
-  cargoSha256 = "sha256-XKAre9L2mk31CgXbP53zR8mr92Jh9qVSx+sMkhqq/M4=";
+  cargoSha256 = "sha256-fCIBv8FOUBPzf7I7CdVBDvbHVyuNQRURxNQ7B7cgoKE=";
 
   nativeBuildInputs = [ pkg-config ];
 
diff --git a/pkgs/development/tools/rust/cargo-hakari/default.nix b/pkgs/development/tools/rust/cargo-hakari/default.nix
index da263213ed61..f5c9a96b496b 100644
--- a/pkgs/development/tools/rust/cargo-hakari/default.nix
+++ b/pkgs/development/tools/rust/cargo-hakari/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "cargo-hakari";
-  version = "0.9.24";
+  version = "0.9.25";
 
   src = fetchFromGitHub {
     owner = "guppy-rs";
     repo = "guppy";
     rev = "cargo-hakari-${version}";
-    sha256 = "sha256-kg1iWku+zAXG9cCYCD4rqKzKNtDt0hMCnE5QyhJpLq8=";
+    sha256 = "sha256-cKnu28L8tjndjtHuClLIpiwTzf6YoN37vw1sE7xrNzQ=";
   };
 
-  cargoHash = "sha256-hrWsQXjWzhSVVj+bUviGEn+E7Lytzgf1r8VmQxJQubE=";
+  cargoHash = "sha256-PoTwS9oS8Nmkdp3ZvdZRdk028SIx6D7kfsiRksyTpKo=";
 
   cargoBuildFlags = [ "-p" "cargo-hakari" ];
   cargoTestFlags = [ "-p" "cargo-hakari" ];