diff --git a/flake.lock b/flake.lock
index 8354cc3..10c6e1d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "crane": {
       "locked": {
-        "lastModified": 1727974419,
-        "narHash": "sha256-WD0//20h+2/yPGkO88d2nYbb23WMWYvnRyDQ9Dx4UHg=",
+        "lastModified": 1732407143,
+        "narHash": "sha256-qJOGDT6PACoX+GbNH2PPx2ievlmtT1NVeTB80EkRLys=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "37e4f9f0976cb9281cd3f0c70081e5e0ecaee93f",
+        "rev": "f2b4b472983817021d9ffb60838b2b36b9376b20",
         "type": "github"
       },
       "original": {
@@ -20,11 +20,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1727826117,
-        "narHash": "sha256-K5ZLCyfO/Zj9mPFldf3iwS6oZStJcU4tSpiXTMYaaL0=",
+        "lastModified": 1730504689,
+        "narHash": "sha256-hgmguH29K2fvs9szpq2r3pz2/8cJd2LPS+b4tfNFCwE=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "3d04084d54bedc3d6b8b736c70ef449225c361b1",
+        "rev": "506278e768c2a08bec68eb62932193e341f55c90",
         "type": "github"
       },
       "original": {
@@ -70,16 +70,16 @@
     "holochain": {
       "flake": false,
       "locked": {
-        "lastModified": 1732669495,
-        "narHash": "sha256-JPT3ZJQHlMjoDmdyYn46IFp5QhJ9TwsVS9ELTT30+t0=",
+        "lastModified": 1732794113,
+        "narHash": "sha256-p123iaQbIY7bkJWnRab3saVNTOBWwl4N6Sz1sYMPAWQ=",
         "owner": "holochain",
         "repo": "holochain",
-        "rev": "f441becbea4b7a3bdfc45239d024c751869ab1e4",
+        "rev": "662cbcc45a685425355f5e3682c080a101271dfa",
         "type": "github"
       },
       "original": {
         "owner": "holochain",
-        "ref": "holochain-0.5.0-dev.7",
+        "ref": "holochain-0.4.0-rc.2",
         "repo": "holochain",
         "type": "github"
       }
@@ -96,16 +96,16 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1732727927,
-        "narHash": "sha256-smpX2X7CaFfhqe8nDdq6GS8ssmgAk7ck5qUuhrig7a0=",
+        "lastModified": 1732887221,
+        "narHash": "sha256-P+jweVdZGA3W2IWTCy5LNqfALOaPtRLVjnJ6glUWTgg=",
         "owner": "holochain",
         "repo": "holonix",
-        "rev": "1dbf7e73ab36172f0b57ba003ecb83dcd81fa5c9",
+        "rev": "ee077eae3686922620dd18edd1b975d307890ce0",
         "type": "github"
       },
       "original": {
         "owner": "holochain",
-        "ref": "main",
+        "ref": "main-0.4",
         "repo": "holonix",
         "type": "github"
       }
@@ -113,16 +113,16 @@
     "lair-keystore": {
       "flake": false,
       "locked": {
-        "lastModified": 1726865440,
-        "narHash": "sha256-+ARQs+Sfmh8QXMyjjHjm6Ib8Ag86Jm2vnyB6l3zTCgA=",
+        "lastModified": 1732721902,
+        "narHash": "sha256-D8sXIpOptaXib5bc6zS7KsGzu4D08jaL8Fx1W/mlADE=",
         "owner": "holochain",
         "repo": "lair",
-        "rev": "9f306efed597765b70da704e1739ecc67f2510e0",
+        "rev": "e82937521ae9b7bdb30c8b0736c13cd4220a0223",
         "type": "github"
       },
       "original": {
         "owner": "holochain",
-        "ref": "lair_keystore-v0.5.2",
+        "ref": "lair_keystore-v0.5.3",
         "repo": "lair",
         "type": "github"
       }
@@ -145,14 +145,14 @@
     },
     "nixpkgs-lib": {
       "locked": {
-        "lastModified": 1727825735,
-        "narHash": "sha256-0xHYkMkeLVQAMa7gvkddbPqpxph+hDzdu1XdGPJR+Os=",
+        "lastModified": 1730504152,
+        "narHash": "sha256-lXvH/vOfb4aGYyvFmZK/HlsNsr/0CVWlwYvo2rxJk3s=",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/fb192fec7cc7a4c26d51779e9bab07ce6fa5597a.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
       },
       "original": {
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/fb192fec7cc7a4c26d51779e9bab07ce6fa5597a.tar.gz"
+        "url": "https://github.com/NixOS/nixpkgs/archive/cc2f28000298e1269cea6612cd06ec9979dd5d7f.tar.gz"
       }
     },
     "root": {
@@ -172,11 +172,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1728268235,
-        "narHash": "sha256-lJMFnMO4maJuNO6PQ5fZesrTmglze3UFTTBuKGwR1Nw=",
+        "lastModified": 1732328983,
+        "narHash": "sha256-RHt12f/slrzDpSL7SSkydh8wUE4Nr4r23HlpWywed9E=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "25685cc2c7054efc31351c172ae77b21814f2d42",
+        "rev": "ed8aa5b64f7d36d9338eb1d0a3bb60cf52069a72",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 8fa533d..fe9cd23 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,6 @@
 {
   inputs = {
-    holonix.url = "github:holochain/holonix?ref=main";
+    holonix.url = "github:holochain/holonix?ref=main-0.4";
     nixpkgs.follows = "holonix/nixpkgs";
   };