diff --git a/flake.lock b/flake.lock
index e5af5a8..732e165 100644
--- a/flake.lock
+++ b/flake.lock
@@ -293,16 +293,17 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1765062926,
-        "narHash": "sha256-p0DkyfrMae/6SVPCb/XY5f9fOFc+fwtOCteRqD297QE=",
+        "lastModified": 1764622702,
+        "narHash": "sha256-HggOVvg2U3EwT44wPHEwFKromf9qR9rTqfV1i3q7rYs=",
         "owner": "nix-community",
         "repo": "lanzaboote",
-        "rev": "4f5fc14c175cd0574ca0f4c5a05fae63758f0c47",
+        "rev": "6242b3b2b5e5afcf329027ed4eb5fa6e2eab10f1",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
         "repo": "lanzaboote",
+        "rev": "6242b3b2b5e5afcf329027ed4eb5fa6e2eab10f1",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index 54f8dfe..39379d3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,7 +5,8 @@
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
 
     lanzaboote = {
-      url = "github:nix-community/lanzaboote";
+      # Pin to commit to fix: https://github.com/nix-community/lanzaboote/issues/518
+      url = "github:nix-community/lanzaboote/6242b3b2b5e5afcf329027ed4eb5fa6e2eab10f1";
       inputs.nixpkgs.follows = "nixpkgs";
     };