diff --git a/bb8/Cargo.toml b/bb8/Cargo.toml
index 08dc7eb..a79ebb7 100644
--- a/bb8/Cargo.toml
+++ b/bb8/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bb8"
-version = "0.4.0-pre"
+version = "0.4.0"
 authors = ["Kyle Huey <khuey@kylehuey.com>", "Dirkjan Ochtman <dirkjan@ochtman.nl>"]
 description = "r2d2, but for async tokio based connections"
 license = "MIT"
diff --git a/postgres/Cargo.toml b/postgres/Cargo.toml
index 817b106..e8d4f98 100644
--- a/postgres/Cargo.toml
+++ b/postgres/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bb8-postgres"
-version = "0.4.0-pre"
+version = "0.4.0"
 authors = ["Kyle Huey <khuey@kylehuey.com>"]
 description = "r2d2-postgres, but for async tokio based connections"
 license = "MIT"
@@ -17,7 +17,7 @@ edition = "2018"
 
 [dependencies]
 async-trait = "0.1"
-bb8 = { path = "../bb8" }
+bb8 = { version = "0.4.0", path = "../bb8" }
 futures = "0.3"
 tokio = { version = "0.2", features = ["rt-core"] }
 tokio-postgres = "0.5.1"
diff --git a/redis/Cargo.toml b/redis/Cargo.toml
index 3d48a95..56d9692 100644
--- a/redis/Cargo.toml
+++ b/redis/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bb8-redis"
-version = "0.4.0-pre"
+version = "0.4.0"
 authors = ["Daniel Smith <smith.daniel.br@gmail.com>", "Kyle Huey <khuey@kylehuey.com>"]
 description = "r2d2-redis, but for async tokio based connections"
 license = "MIT"
@@ -9,6 +9,6 @@ edition = "2018"
 
 [dependencies]
 async-trait = "0.1"
-bb8 = { path = "../bb8" }
+bb8 = { version = "0.4.0", path = "../bb8" }
 futures = "0.3"
 redis = "0.15"