diff --git a/flake.lock b/flake.lock
index 2c36a44..b13388c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -11,11 +11,11 @@
         "src-pythonparser": "src-pythonparser"
       },
       "locked": {
-        "lastModified": 1699353408,
-        "narHash": "sha256-mJZ9PoRsOvN5gtrEl9ogj/+GRCK8O3tZbcyfxKvGG20=",
+        "lastModified": 1701573618,
+        "narHash": "sha256-snxC4al3n0zvu5++VAlr7KDRhjccLZWDL9G1R+NqT/A=",
         "ref": "refs/heads/master",
-        "rev": "ec2b86b08d497a41e75c228385b754c6f3a4a8bf",
-        "revCount": 8585,
+        "rev": "8ca75a3fb91f2de5416568f3fb14a09f75219c60",
+        "revCount": 8601,
         "type": "git",
         "url": "https://github.com/m-labs/artiq.git"
       },
@@ -118,16 +118,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1699169573,
-        "narHash": "sha256-cvUb1xZkvOp3W2SzylStrTirhVd9zCeo5utJl9nSIhw=",
+        "lastModified": 1701389149,
+        "narHash": "sha256-rU1suTIEd5DGCaAXKW6yHoCfR1mnYjOXQFOaH7M23js=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "aeefe2054617cae501809b82b44a8e8f7be7cc4b",
+        "rev": "5de0b32be6e85dc1a9404c75131316e4ffbc634c",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-23.05",
+        "ref": "nixos-23.11",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -147,11 +147,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1697528004,
-        "narHash": "sha256-FFa2MbhAJEjwY58uOs0swvgymfjubHyWba6Q0X6CbB0=",
+        "lastModified": 1701572254,
+        "narHash": "sha256-ixq8dlpyOytDr+d/OmW8v1Ioy9V2G2ibOlNj8GFDSq4=",
         "owner": "m-labs",
         "repo": "sipyco",
-        "rev": "c0a7ed350ccfb85474217057fc47b3f258ca8d99",
+        "rev": "cceac0df537887135f99aa6b1bdd82853f16b4d6",
         "type": "github"
       },
       "original": {
@@ -234,11 +234,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1697795161,
-        "narHash": "sha256-p89w9eoFJ2VFTDZ5Mrv5vsH0E1Ko9z1C6Ett281hCHg=",
+        "lastModified": 1701572971,
+        "narHash": "sha256-f8IPIYenff7B8S3p/pjVxT/0HVZuJXtdg2jtMpaZEbM=",
         "ref": "refs/heads/master",
-        "rev": "be672ab662d8134ee11412a651864824f6483d4a",
-        "revCount": 630,
+        "rev": "91bae572f913abc2f95acb899ca5afa33eeaa036",
+        "revCount": 634,
         "type": "git",
         "url": "https://git.m-labs.hk/m-labs/zynq-rs"
       },
diff --git a/flake.nix b/flake.nix
index 9c858ce..c27bc4f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -78,6 +78,7 @@
 
       # migen/misoc version checks are broken with pyproject for some reason
       postPatch = ''
+        sed -i "1,4d" pyproject.toml
         substituteInPlace pyproject.toml \
           --replace '"migen@git+https://github.com/m-labs/migen",' ""
         substituteInPlace pyproject.toml \
@@ -152,6 +153,7 @@
 
         doCheck = false;
         dontFixup = true;
+        auditable = false;
       };
       gateware = pkgs.runCommand "${target}-${variant}-gateware"
         {