diff --git a/Cargo.lock b/Cargo.lock
index e7b945a..17b374d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1304,7 +1304,7 @@ dependencies = [
 
 [[package]]
 name = "syndicate-macros"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/syndicate-macros/Cargo.toml b/syndicate-macros/Cargo.toml
index 68b4632..6bc2e74 100644
--- a/syndicate-macros/Cargo.toml
+++ b/syndicate-macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "syndicate-macros"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Tony Garnock-Jones <tonyg@leastfixedpoint.com>"]
 edition = "2018"
 
diff --git a/syndicate-server/Cargo.toml b/syndicate-server/Cargo.toml
index 4833920..4b415ca 100644
--- a/syndicate-server/Cargo.toml
+++ b/syndicate-server/Cargo.toml
@@ -11,7 +11,7 @@ license = "Apache-2.0"
 
 [dependencies]
 syndicate = { path = "../syndicate", version = "^0.9.0"}
-syndicate-macros = { path = "../syndicate-macros", version = "^0.3.0"}
+syndicate-macros = { path = "../syndicate-macros", version = "^0.4.0"}
 
 futures = "0.3.5"