diff --git a/cabal.project b/cabal.project
index f4e7ccad2..3d4fc9eb6 100644
--- a/cabal.project
+++ b/cabal.project
@@ -10,9 +10,9 @@ repository cardano-haskell-packages
     d4a35cd3121aa00d18544bb0ac01c3e1691d618f462c46129271bccf39f7e8ee
 
 -- The hackage index-state
-index-state: 2023-11-08T09:44:54Z
+index-state: 2024-02-14T22:42:30Z
 -- The CHaP index-state
-index-state: cardano-haskell-packages 2023-10-05T20:34:14Z
+index-state: cardano-haskell-packages 2024-02-14T10:17:08Z
 
 packages:
   base-deriving-via
diff --git a/flake.lock b/flake.lock
index 1db623947..fc1adcfc9 100644
--- a/flake.lock
+++ b/flake.lock
@@ -3,11 +3,11 @@
     "CHaP": {
       "flake": false,
       "locked": {
-        "lastModified": 1702742788,
-        "narHash": "sha256-lSU0M27LC0d60cJ2C2Kdo6gBwTCCYRiALbD528CoTtc=",
+        "lastModified": 1707917276,
+        "narHash": "sha256-Y4l/aeyOAsOGVypAabuxzXbKoOd1xM+JNCYG//jnh3A=",
         "owner": "intersectmbo",
         "repo": "cardano-haskell-packages",
-        "rev": "4a236a8ad9e3c6d20235de27eacbe3d4de72479c",
+        "rev": "bb334e5a25a872fc0c879d01afc0e1b7990483a3",
         "type": "github"
       },
       "original": {
@@ -226,11 +226,11 @@
     "hackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1699402991,
-        "narHash": "sha256-2nQBlA3ygBiIqVPh2J1JwP51rEO0xMjyoOaoJk5PboY=",
+        "lastModified": 1707870123,
+        "narHash": "sha256-pOvz6uuPYw3CiPgi63QhNYumoKeyzDh9JOkLDngGWsE=",
         "owner": "input-output-hk",
         "repo": "hackage.nix",
-        "rev": "9e963602a5b3259dac9cf5e994f0a338fb352b7e",
+        "rev": "75345eba5d4159e6f54cbdc38785d1e0d0e655e0",
         "type": "github"
       },
       "original": {
@@ -419,11 +419,11 @@
         "sodium": "sodium"
       },
       "locked": {
-        "lastModified": 1696471795,
-        "narHash": "sha256-aNNvjUtCGXaXSp5M/HSj1SOeLjqLyTRWYbIHqAEeUp0=",
+        "lastModified": 1707581561,
+        "narHash": "sha256-A9MT8D7M2We0HCBQbClrA91ZquGf7GU+T6tvjMeUUEA=",
         "owner": "input-output-hk",
         "repo": "iohk-nix",
-        "rev": "91f16fa8acb58b312f94977715c630d8bf77e33e",
+        "rev": "51469c3fc2c74e24b529f63615670259ba1fee38",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 644dd428c..6256a8694 100644
--- a/flake.nix
+++ b/flake.nix
@@ -54,8 +54,8 @@
             cabal = "3.10.1.0";
             ghcid = "0.8.8";
             haskell-language-server = "latest";
-            hlint = {};
-            weeder = "2.4.1";
+            hlint = "3.8";
+            weeder = "2.7.0";
           };
           # Now we use pkgsBuildBuild, to make sure that even in the cross
           # compilation setting, we don't run into issues where we pick tools