diff --git a/pkgs/development/tools/misc/hydra/unstable.nix b/pkgs/development/tools/misc/hydra/unstable.nix
index 654a6b4a502d..242df1d44c7d 100644
--- a/pkgs/development/tools/misc/hydra/unstable.nix
+++ b/pkgs/development/tools/misc/hydra/unstable.nix
@@ -4,10 +4,8 @@
 , perlPackages
 , buildEnv
 , makeWrapper
-, libtool
 , unzip
 , pkg-config
-, sqlite
 , libpqxx
 , top-git
 , mercurial
@@ -22,7 +20,6 @@
 , prometheus-cpp
 , nukeReferences
 , git
-, boehmgc
 , nlohmann_json
 , docbook_xsl
 , openssh
@@ -126,13 +123,13 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "hydra";
-  version = "2023-03-27";
+  version = "2023-06-25";
 
   src = fetchFromGitHub {
     owner = "NixOS";
     repo = "hydra";
-    rev = "082495e34e094cae1eb49dbfc5648938e23c6355";
-    sha256 = "sha256-Nj9U0V7Zv7XoRDdO7ECphTk6jHfOgeZe6G0x4FQLpJ0=";
+    rev = "526e8bd7441d1beb271ff89bbca3604077ecffdb";
+    sha256 = "sha256-VRNI3H/WUTi7VTNLwO/I0gMnJ6ZMYRbBfgdsAj+TmP4=";
   };
 
   buildInputs = [
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ca307e955e86..ff6ad9ee1159 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -21396,7 +21396,7 @@ with pkgs;
 
   hwloc = callPackage ../development/libraries/hwloc { };
 
-  hydra_unstable = callPackage ../development/tools/misc/hydra/unstable.nix { nix = nixVersions.nix_2_13; };
+  hydra_unstable = callPackage ../development/tools/misc/hydra/unstable.nix { nix = nixVersions.nix_2_16; };
 
   hydra-cli = callPackage ../development/tools/misc/hydra-cli { };