diff --git a/flake.lock b/flake.lock
index 5782a02..332217c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -38,16 +38,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1655130522,
-        "narHash": "sha256-5dzlxE4okyu+M39yeVtHWQXzDZQxFF5rUB1iY9R6Lb4=",
+        "lastModified": 1655200170,
+        "narHash": "sha256-/yzkX+10sJhYNIcTtZ5ObS+nh/HrJp01XLaubzbRDcU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "13f08d71ceff5101321e0291854495a1ec153a5e",
+        "rev": "9ff91ce2e4c5d70551d4c8fd8830931c6c6b26b8",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-unstable",
+        "ref": "nixos-22.05",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -84,10 +84,27 @@
         "type": "github"
       }
     },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1655221618,
+        "narHash": "sha256-ht8HRFthDKzYt+il+sGgkBwrv+Ex2l8jdGVpsrPfFME=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6616de389ed55fba6eeba60377fc04732d5a207c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "microvm": "microvm",
         "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable",
         "sops-nix": "sops-nix"
       }
     },