diff --git a/.hydra/spec.json b/.hydra/spec.json
new file mode 100644
index 0000000..a44b02b
--- /dev/null
+++ b/.hydra/spec.json
@@ -0,0 +1,14 @@
+{
+  "wai-handler-hal-example": {
+    "enabled": 1,
+    "hidden": false,
+    "keepnr": 1,
+    "checkinterval": 300,
+    "schedulingshares": 100,
+    "description": "Development shell and bootstraps for wai-handler-hal-example repo",
+    "enableemail": false,
+    "emailoverride": "",
+    "type": 1,
+    "flake": "git+ssh://git@github.com/bellroy/wai-handler-hal-example"
+  }
+}
diff --git a/README.md b/README.md
index 8e407cd..74e6dcd 100644
--- a/README.md
+++ b/README.md
@@ -44,3 +44,13 @@ images:
   Lambda Runtime Interface
   Emulator](https://github.com/aws/aws-lambda-runtime-interface-emulator/),
   and the bootstrap binary.
+
+## Maintaining this Repo
+
+We don't provide `haskell-ci` in the development shell, in case people
+copying the flake don't want it. To regenerate the GitHub Actions
+workflow:
+
+```sh
+nix run nixpkgs#haskell-ci regenerate
+```
diff --git a/flake.nix b/flake.nix
index 0b13482..e34d440 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,7 +23,7 @@
       pkgsMusl = pkgsLocal.pkgsCross.musl64;
 
       project = pkgs: pkgs.haskell-nix.project {
-        compiler-nix-name = "ghc948";
+        compiler-nix-name = "ghc963";
         evalSystem = "x86_64-linux";
         src = pkgsLocal.haskell-nix.haskellLib.cleanGit {
           name = "wai-handler-hal-example";
@@ -39,6 +39,16 @@
         }];
       };
 
+      devShells.x86_64-linux.default =
+        (project pkgsLocal).shellFor {
+          withHoogle = false;
+          buildInputs = with pkgsLocal; [
+            haskellPackages.cabal-fmt
+            nixpkgs-fmt
+            nodejs
+          ];
+        };
+
       # Compress a binary and put it in a directory under the name
       # `bootstrap`; CDK is smart enough to zip the directory up for
       # deployment.
@@ -47,8 +57,7 @@
         mkdir $out
         ${pkgsLocal.upx}/bin/upx -9 -o $out/bootstrap ${lambdaBinary}
       '';
-    in
-    {
+
       packages.x86_64-linux = {
         default = bootstrap;
         container = pkgsLocal.callPackage ./container.nix {
@@ -66,16 +75,21 @@
         };
       };
 
-      devShells.x86_64-linux.default =
-        (project pkgsLocal).shellFor {
-          withHoogle = false;
-          buildInputs = with pkgsLocal; [
-            haskellPackages.cabal-fmt
-            nixpkgs-fmt
-            nodejs
-          ];
-        };
-    };
+      hydraJobs = {
+        aggregate = pkgsLocal.runCommand "aggregate"
+          {
+            _hydraAggregate = true;
+            constituents = [
+              "devShells.x86_64-linux.default"
+              "packages.x86_64-linux.default"
+              "packages.x86_64-linux.container"
+              "packages.x86_64-linux.tiny-container"
+            ];
+          }
+          "touch $out";
+      } // devShells // packages;
+    in
+    { inherit devShells packages hydraJobs; };
 
   nixConfig = {
     allow-import-from-derivation = "true";
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..cc83e30
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,6 @@
+{
+  "name": "wai-handler-hal-example",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {}
+}
diff --git a/wai-handler-hal-example.cabal b/wai-handler-hal-example.cabal
index 43168a0..3859886 100644
--- a/wai-handler-hal-example.cabal
+++ b/wai-handler-hal-example.cabal
@@ -21,7 +21,7 @@ extra-source-files:
   README.md
 
 tested-with:
-  GHC ==8.6.5 || ==8.8.4 || ==8.10.7 || ==9.0.2 || ==9.2.5 || ==9.4.5
+  GHC ==8.6.5 || ==8.8.4 || ==8.10.7 || ==9.0.2 || ==9.2.5 || ==9.4.5 || ==9.6.3
 
 common opts
   default-language: Haskell2010
@@ -35,7 +35,7 @@ common opts
 common deps
   build-depends:
     , aeson            >=1.5.6.0 && <1.6  || >=2.0 && <2.3
-    , base             >=4.12    && <4.19
+    , base             >=4.12    && <4.20
     , servant          >=0.18.2  && <0.21
     , servant-server   >=0.18.2  && <0.21
     , text             ^>=1.2.3  || >=2.0 && <2.1  || ^>=2.1
@@ -46,7 +46,7 @@ executable wai-handler-hal-example-hal
   hs-source-dirs: exe/hal
   main-is:        Main.hs
   build-depends:
-    , hal                      >=0.4.7 && <0.4.11 || >=1.0.0 && <1.1
+    , hal                      >=0.4.7 && <0.4.11 || >=1.0.0 && <1.2
     , wai-handler-hal-example
 
   ghc-options:    -threaded
@@ -57,7 +57,7 @@ executable wai-handler-hal-example-warp
   main-is:        Main.hs
   build-depends:
     , wai-handler-hal-example
-    , warp                     ^>=3.3.14
+    , warp                     >=3.3.14 && <3.4
 
   ghc-options:    -threaded