diff --git a/pkgs/by-name/cm/cmdstan/package.nix b/pkgs/by-name/cm/cmdstan/package.nix
index 87d0feed6a6a..d490a39095c6 100644
--- a/pkgs/by-name/cm/cmdstan/package.nix
+++ b/pkgs/by-name/cm/cmdstan/package.nix
@@ -12,14 +12,14 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "cmdstan";
-  version = "2.37.0";
+  version = "2.38.0";
 
   src = fetchFromGitHub {
     owner = "stan-dev";
     repo = "cmdstan";
     tag = "v${finalAttrs.version}";
     fetchSubmodules = true;
-    hash = "sha256-bKkzzFkMF8+Ufz/EdKLJdB290Fvc2t8b47xB8oPz/sk=";
+    hash = "sha256-4Mx4LvXW2lYOSSOgNT0f+unry6mBobgGTDLwtiypHBU=";
   };
 
   postPatch = ''
diff --git a/pkgs/by-name/st/stanc/package.nix b/pkgs/by-name/st/stanc/package.nix
index 9bdab90f50d8..0bad4160a49b 100644
--- a/pkgs/by-name/st/stanc/package.nix
+++ b/pkgs/by-name/st/stanc/package.nix
@@ -6,7 +6,7 @@
 
 ocamlPackages.buildDunePackage rec {
   pname = "stanc";
-  version = "2.37.0";
+  version = "2.38.0";
 
   minimalOCamlVersion = "4.12";
 
@@ -14,10 +14,13 @@ ocamlPackages.buildDunePackage rec {
     owner = "stan-dev";
     repo = "stanc3";
     tag = "v${version}";
-    hash = "sha256-d+sInQfnlT1gLbtIRPD+LUZgIdl519OrfvgSNYdYeII=";
+    hash = "sha256-j05PMQKIqkM9UWJzSVnkYWe6d+iUnmFOh1W8pZ7Fdyk=";
   };
 
-  nativeBuildInputs = with ocamlPackages; [ menhir ];
+  nativeBuildInputs = with ocamlPackages; [
+    cmdliner
+    menhir
+  ];
 
   buildInputs = with ocamlPackages; [
     core_unix
@@ -25,7 +28,7 @@ ocamlPackages.buildDunePackage rec {
     ppx_deriving
     fmt
     yojson
-    cmdliner_1
+    cmdliner
   ];
 
   meta = {