diff --git a/pkgs/development/tools/rust/cargo-pgrx/default.nix b/pkgs/development/tools/rust/cargo-pgrx/default.nix
index 49fd92aefe0f..48b36e9cb91f 100644
--- a/pkgs/development/tools/rust/cargo-pgrx/default.nix
+++ b/pkgs/development/tools/rust/cargo-pgrx/default.nix
@@ -54,6 +54,12 @@ let
     };
 in
 {
+  cargo-pgrx_0_12_0_alpha_1 = generic {
+    version = "0.12.0-alpha.1";
+    hash = "sha256-0m9oaqjU42RYyttkTihADDrRMjr2WoK/8sInZALeHws=";
+    cargoHash = "sha256-9XTIcpoCnROP63ZTDgMMMmj0kPggiTazKlKQfCgXKzk=";
+  };
+
   cargo-pgrx_0_12_5 = generic {
     version = "0.12.5";
     hash = "sha256-U2kF+qjQwMTaocv5f4p5y3qmPUsTzdvAp8mz9cn/COw=";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index c48d8d67ea9e..444d80f40cb4 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6963,6 +6963,7 @@ with pkgs;
     inherit (darwin.apple_sdk.frameworks) CoreFoundation CoreServices Security SystemConfiguration;
   };
   inherit (callPackages ../development/tools/rust/cargo-pgrx { })
+    cargo-pgrx_0_12_0_alpha_1
     cargo-pgrx_0_12_5
     cargo-pgrx_0_12_6
     ;