diff --git a/pkgs/development/tools/rust/cargo-pgrx/default.nix b/pkgs/development/tools/rust/cargo-pgrx/default.nix
index 93010928ddc6..5752f9535f80 100644
--- a/pkgs/development/tools/rust/cargo-pgrx/default.nix
+++ b/pkgs/development/tools/rust/cargo-pgrx/default.nix
@@ -77,4 +77,11 @@ in
     hash = "sha256-0m9oaqjU42RYyttkTihADDrRMjr2WoK/8sInZALeHws=";
     cargoHash = "sha256-9XTIcpoCnROP63ZTDgMMMmj0kPggiTazKlKQfCgXKzk=";
   };
+
+  cargo-pgrx_0_12_6 = generic {
+    version = "0.12.6";
+    hash = "sha256-7aQkrApALZe6EoQGVShGBj0UIATnfOy2DytFj9IWdEA=";
+    cargoHash = "sha256-Di4UldQwAt3xVyvgQT1gUhdvYUVp7n/a72pnX45kP0w=";
+  };
+
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ee4c200056ff..26a240bf8f5d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7007,6 +7007,7 @@ with pkgs;
     cargo-pgrx_0_11_2
     cargo-pgrx_0_11_3
     cargo-pgrx_0_12_0_alpha_1
+    cargo-pgrx_0_12_6
     ;
   cargo-pgrx = cargo-pgrx_0_11_2;