diff --git a/flake.lock b/flake.lock
index e761acbc5f..39dad2b6d3 100644
--- a/flake.lock
+++ b/flake.lock
@@ -36,17 +36,17 @@
     "blst": {
       "flake": false,
       "locked": {
-        "lastModified": 1656163412,
-        "narHash": "sha256-xero1aTe2v4IhWIJaEDUsVDOfE77dOV5zKeHWntHogY=",
+        "lastModified": 1691598027,
+        "narHash": "sha256-oqljy+ZXJAXEB/fJtmB8rlAr4UXM+Z2OkDa20gpILNA=",
         "owner": "supranational",
         "repo": "blst",
-        "rev": "03b5124029979755c752eec45f3c29674b558446",
+        "rev": "3dd0f804b1819e5d03fb22ca2e6fac105932043a",
         "type": "github"
       },
       "original": {
         "owner": "supranational",
+        "ref": "v0.3.11",
         "repo": "blst",
-        "rev": "03b5124029979755c752eec45f3c29674b558446",
         "type": "github"
       }
     },
@@ -210,11 +210,11 @@
     "hackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1708647761,
-        "narHash": "sha256-1WiRX2IqiopPq3sQTBPF7BswDacfGB9UUNnN9PYgrXA=",
+        "lastModified": 1708906978,
+        "narHash": "sha256-GTcMtNGWpRJ/LAFkcQjNS+mneNMjcRNyg3x11eKI62g=",
         "owner": "input-output-hk",
         "repo": "hackage.nix",
-        "rev": "6a164db037c9cb2fd7ea946e7a0d62d7d8f53766",
+        "rev": "93d5bc1145240077425ef31bb73eaa76a68e52fa",
         "type": "github"
       },
       "original": {
@@ -245,6 +245,7 @@
         "hpc-coveralls": "hpc-coveralls",
         "hydra": "hydra",
         "iserv-proxy": "iserv-proxy",
+        "nix-tools-static": "nix-tools-static",
         "nixpkgs": [
           "haskellNix",
           "nixpkgs-unstable"
@@ -261,11 +262,11 @@
         "stackage": "stackage"
       },
       "locked": {
-        "lastModified": 1706057473,
-        "narHash": "sha256-b5F4H1wJi/AiI4QfVBTQ4qOWsYeruytWm+ga+xYscJs=",
+        "lastModified": 1708911681,
+        "narHash": "sha256-QGkzPN1HUYxgMU2EwiwjMvR2gQF0ffUdxALq1+bOdcY=",
         "owner": "input-output-hk",
         "repo": "haskell.nix",
-        "rev": "c9129a2eb14aff7c9db534023cb04f6ff6bfa152",
+        "rev": "5031fa0b8346fcc533c33073530ca87b8390add3",
         "type": "github"
       },
       "original": {
@@ -458,11 +459,11 @@
         "sodium": "sodium"
       },
       "locked": {
-        "lastModified": 1702362799,
-        "narHash": "sha256-cU8cZXNuo5GRwrSvWqdaqoW5tJ2HWwDEOvWwIVPDPmo=",
+        "lastModified": 1708437078,
+        "narHash": "sha256-EUsAEG0LmnMmX7Z6JW2LX8/VhpAJ2dXVwVGXWn5LmxQ=",
         "owner": "input-output-hk",
         "repo": "iohk-nix",
-        "rev": "b426fb9e0b109a9d1dd2e1476f9e0bd8bb715142",
+        "rev": "5ab7134bb21d7bd858dbe1c702761aa7e15eaf88",
         "type": "github"
       },
       "original": {
@@ -525,6 +526,23 @@
         "type": "github"
       }
     },
+    "nix-tools-static": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1706266250,
+        "narHash": "sha256-9t+GRk3eO9muCtKdNAwBtNBZ5dH1xHcnS17WaQyftwA=",
+        "owner": "input-output-hk",
+        "repo": "haskell-nix-example",
+        "rev": "580cb6db546a7777dad3b9c0fa487a366c045c4e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "input-output-hk",
+        "ref": "nix",
+        "repo": "haskell-nix-example",
+        "type": "github"
+      }
+    },
     "nixlib": {
       "locked": {
         "lastModified": 1667696192,
@@ -783,11 +801,11 @@
     "stackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1706054996,
-        "narHash": "sha256-URZYIAVp0Zt0lMr05+1VlDWUZe6C2D+FLBfFfn7Sti4=",
+        "lastModified": 1708906175,
+        "narHash": "sha256-KJDF0CO077Jx4GjjPK6pNkx6NkY7p1x5RMPfaIe8nl4=",
         "owner": "input-output-hk",
         "repo": "stackage.nix",
-        "rev": "2d34cb4a94ed34c0ae200515172fe2bc9cb39ab6",
+        "rev": "bfa4778050cf69fe50f91d39dcefbb9005d6d0d0",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 6c1f994859..4d9f9a4bb8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -45,7 +45,7 @@
                      else [];
 
         # see flake `variants` below for alternative compilers
-        defaultCompiler = "ghc963";
+        defaultCompiler = "ghc964";
         # We use cabalProject' to ensure we don't build the plan for
         # all systems.
         cabalProject = nixpkgs.haskell-nix.cabalProject' ({config, ...}: {