diff --git a/Cargo.lock b/Cargo.lock
index 04cf3d0fea..cc0009c531 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -621,7 +621,7 @@ dependencies = [
 
 [[package]]
 name = "beacon_node"
-version = "3.4.0"
+version = "3.4.0-tree.0"
 dependencies = [
  "beacon_chain",
  "clap",
@@ -790,7 +790,7 @@ dependencies = [
 
 [[package]]
 name = "boot_node"
-version = "3.4.0"
+version = "3.4.0-tree.0"
 dependencies = [
  "beacon_node",
  "clap",
@@ -3712,7 +3712,7 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "lcli"
-version = "3.4.0"
+version = "3.4.0-tree.0"
 dependencies = [
  "account_utils",
  "beacon_chain",
@@ -4315,7 +4315,7 @@ dependencies = [
 
 [[package]]
 name = "lighthouse"
-version = "3.4.0"
+version = "3.4.0-tree.0"
 dependencies = [
  "account_manager",
  "account_utils",
@@ -4692,6 +4692,7 @@ dependencies = [
 [[package]]
 name = "milhouse"
 version = "0.1.0"
+source = "git+https://github.com/sigp/milhouse?branch=main#7712800a18796640a722a219997fc6b2cd745ba2"
 dependencies = [
  "derivative",
  "ethereum_hashing",
diff --git a/beacon_node/Cargo.toml b/beacon_node/Cargo.toml
index cca8cc969e..be3001cd84 100644
--- a/beacon_node/Cargo.toml
+++ b/beacon_node/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "beacon_node"
-version = "3.4.0"
+version = "3.4.0-tree.0"
 authors = ["Paul Hauner <paul@paulhauner.com>", "Age Manning <Age@AgeManning.com"]
 edition = "2021"
 
diff --git a/boot_node/Cargo.toml b/boot_node/Cargo.toml
index 7fa1d94b4c..9d023cf075 100644
--- a/boot_node/Cargo.toml
+++ b/boot_node/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "boot_node"
-version = "3.4.0"
+version = "3.4.0-tree.0"
 authors = ["Sigma Prime <contact@sigmaprime.io>"]
 edition = "2021"
 
diff --git a/common/lighthouse_version/src/lib.rs b/common/lighthouse_version/src/lib.rs
index 3c136b18b9..b39b9943a3 100644
--- a/common/lighthouse_version/src/lib.rs
+++ b/common/lighthouse_version/src/lib.rs
@@ -17,8 +17,8 @@ pub const VERSION: &str = git_version!(
         // NOTE: using --match instead of --exclude for compatibility with old Git
         "--match=thiswillnevermatchlol"
     ],
-    prefix = "Lighthouse/v3.4.0-",
-    fallback = "Lighthouse/v3.4.0"
+    prefix = "Lighthouse/v3.4.0-tree.0-",
+    fallback = "Lighthouse/v3.4.0-tree.0"
 );
 
 /// Returns `VERSION`, but with platform information appended to the end.
@@ -38,7 +38,7 @@ mod test {
     #[test]
     fn version_formatting() {
         let re =
-            Regex::new(r"^Lighthouse/v[0-9]+\.[0-9]+\.[0-9]+(-rc.[0-9])?(-[[:xdigit:]]{7})?\+?$")
+            Regex::new(r"^Lighthouse/v[0-9]+\.[0-9]+\.[0-9]+(-tree.[0-9])?(-[[:xdigit:]]{7})?\+?$")
                 .unwrap();
         assert!(
             re.is_match(VERSION),
diff --git a/lcli/Cargo.toml b/lcli/Cargo.toml
index 13f14d4661..724d642cdc 100644
--- a/lcli/Cargo.toml
+++ b/lcli/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "lcli"
 description = "Lighthouse CLI (modeled after zcli)"
-version = "3.4.0"
+version = "3.4.0-tree.0"
 authors = ["Paul Hauner <paul@paulhauner.com>"]
 edition = "2021"
 
diff --git a/lighthouse/Cargo.toml b/lighthouse/Cargo.toml
index 76b83444ac..19e237fdf5 100644
--- a/lighthouse/Cargo.toml
+++ b/lighthouse/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lighthouse"
-version = "3.4.0"
+version = "3.4.0-tree.0"
 authors = ["Sigma Prime <contact@sigmaprime.io>"]
 edition = "2021"
 autotests = false