diff --git a/flake.lock b/flake.lock
index 88b85fe..9df30d0 100644
--- a/flake.lock
+++ b/flake.lock
@@ -5,11 +5,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1701680307,
-        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
         "type": "github"
       },
       "original": {
@@ -20,17 +20,17 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1703305083,
-        "narHash": "sha256-8xecxMrq4+18tqTuWU/UqP0hYVvCJiODKkTckVIBAoE=",
+        "lastModified": 1720181791,
+        "narHash": "sha256-i4vJL12/AdyuQuviMMd1Hk2tsGt02hDNhA0Zj1m16N8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "54ce5abce7e1531376455c7b32a195329c2587f0",
+        "rev": "4284c2b73c8bce4b46a6adf23e16d9e2ec8da4bb",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
+        "ref": "nixpkgs-unstable",
         "repo": "nixpkgs",
-        "rev": "54ce5abce7e1531376455c7b32a195329c2587f0",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index 3a7ac81..a0801bb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Higher-order, low-boilerplate free monads.";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/54ce5abce7e1531376455c7b32a195329c2587f0";
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
@@ -13,12 +13,12 @@
     hsPkgs = nixpkgs: compiler: import ./nix/overlay.nix { inherit system nixpkgs compiler; };
 
     ghcs = {
-      "810" = hsPkgs nixpkgs "ghc810";
       "90" = hsPkgs nixpkgs "ghc90";
       "92" = hsPkgs nixpkgs "ghc92";
       "94" = hsPkgs nixpkgs "ghc94";
       "96" = hsPkgs nixpkgs "ghc96";
       "98" = hsPkgs nixpkgs "ghc98";
+      "910" = hsPkgs nixpkgs "ghc910";
     };
 
     default = "96";
@@ -39,7 +39,7 @@
       packages = p: [p.polysemy p.polysemy-plugin];
       buildInputs = with ghc; [
         cabal-install
-      ] ++ nixpkgs.lib.optionals (name != "98" && name != "810") [
+      ] ++ nixpkgs.lib.optionals (name != "910" && name != "98" && name != "90") [
         (ghc.pkgs.haskell.lib.dontCheck ghcid)
         haskell-language-server
       ];
diff --git a/nix/overlay.nix b/nix/overlay.nix
index 1d1c6fe..4035e93 100644
--- a/nix/overlay.nix
+++ b/nix/overlay.nix
@@ -5,40 +5,53 @@
 }:
 let
   pkgs = import nixpkgs { inherit system; };
+  hlib = pkgs.haskell.lib;
 
   overrides = self: super:
   let
     filter = pkgs.nix-gitignore.gitignoreSourcePure [./source-filter];
 
-    c2n = name: src: pkgs.haskell.lib.disableLibraryProfiling (self.callCabal2nix name (filter src) {});
+    c2n = name: src: self.callCabal2nix name (filter src) {};
 
   in {
     polysemy = c2n "polysemy" ../.;
     polysemy-plugin = c2n "polysemy-plugin" ../polysemy-plugin;
-  } // pkgs.lib.optionalAttrs (compiler == "ghc96") {
-    type-errors = pkgs.haskell.lib.doJailbreak super.type-errors;
-  } // pkgs.lib.optionalAttrs (compiler == "ghc98") {
-    some = pkgs.haskell.lib.doJailbreak super.some;
-    type-errors = pkgs.haskell.lib.doJailbreak super.type-errors;
+  } // pkgs.lib.optionalAttrs (compiler == "ghc910") {
+
+    cabal-doctest = self.callHackageDirect {
+      pkg = "cabal-doctest";
+      ver = "1.0.10";
+      sha256 = "sha256-h6lGtI8czHKiYyoSrrMKrpitidhH5MBfczl9JkJ7Y0E=";
+    } {};
+
+    call-stack = hlib.dontCheck super.call-stack;
+
+    doctest = hlib.dontCheck (self.callHackageDirect {
+      pkg = "doctest";
+      ver = "0.22.2";
+      sha256 = "193vrmxcnn9fxn7bc6y7jg8qwr13z9a26qqn0c294mn67il18cqn";
+      rev = {
+        revision = "1";
+        sha256 = "sha256-bZcyn5y1PS27VOv+j4EgIQWRd2aizi5EKs15BoL+NvE=";
+      };
+    } {});
+
+    ghc-tcplugins-extra = self.callHackageDirect {
+      pkg = "ghc-tcplugins-extra";
+      ver = "0.4.6";
+      sha256 = "sha256-dFCNSkiKP5pr8Kx/p5Cb+WJ4cp/xcQA2Y5JgPwQ0CzQ=";
+    } {};
+
+    os-string = null;
+
+    primitive = hlib.dontCheck super.primitive_0_9_0_0;
+
     th-abstraction = self.callHackageDirect {
       pkg = "th-abstraction";
       ver = "0.7.0.0";
       sha256 = "sha256-YNCvJ9C8PsOTT+B4NoRT6kA2bOFk4F6ygm8hzWMH+1I=";
     } {};
-    tagged = self.callHackageDirect {
-      pkg = "tagged";
-      ver = "0.8.8";
-      sha256 = "1m2bcf0sr1z28gnl2k8xibcsv80kd35816c9c7ji045jbxg27xd9";
-    } {};
-    hspec = super.hspec_2_11_7;
-    hspec-core = super.hspec-core_2_11_7;
-    hspec-meta = super.hspec-meta_2_11_7;
-    hspec-discover = super.hspec-discover_2_11_7;
-    doctest = self.callHackageDirect {
-      pkg = "doctest";
-      ver = "0.22.2";
-      sha256 = "193vrmxcnn9fxn7bc6y7jg8qwr13z9a26qqn0c294mn67il18cqn";
-    } {};
+
   };
 in
   pkgs.haskell.packages.${compiler}.override { inherit overrides; } // { inherit pkgs; }