diff --git a/flake.lock b/flake.lock
index 465cbbd..d33f90a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -75,16 +75,16 @@
     "holochain": {
       "flake": false,
       "locked": {
-        "lastModified": 1719968525,
-        "narHash": "sha256-smpK/6bTj6rz4L5JE4LNEPXKS2FHX9TuMj2hg473ggI=",
+        "lastModified": 1720573775,
+        "narHash": "sha256-ElKLtMDQpK+4NJixEz0SerENGgle88vp3GPePoOkCPQ=",
         "owner": "holochain",
         "repo": "holochain",
-        "rev": "31c75c07234a573b18f07cb05c2961809bf1c0a1",
+        "rev": "e7c08520293e17501637f3d36841b1e5c7802603",
         "type": "github"
       },
       "original": {
         "owner": "holochain",
-        "ref": "holochain-0.4.0-dev.11",
+        "ref": "holochain-0.4.0-dev.12",
         "repo": "holochain",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 22b5232..dce4ca5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,7 +23,7 @@
 
     # Holochain sources
     holochain = {
-      url = "github:holochain/holochain/holochain-0.4.0-dev.11";
+      url = "github:holochain/holochain/holochain-0.4.0-dev.12";
       flake = false;
     };