diff --git a/Cargo.lock b/Cargo.lock
index 320ccb1..146bfc1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -309,7 +309,7 @@ dependencies = [
 
 [[package]]
 name = "stellar-base"
-version = "0.4.1"
+version = "0.5.0-beta.0"
 dependencies = [
  "base32",
  "base64 0.12.3",
diff --git a/Cargo.toml b/Cargo.toml
index 2f249f9..4762aef 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "stellar-base"
-version = "0.4.1"
+version = "0.5.0-beta.0"
 authors = ["Francesco Ceccon <francesco@ceccon.me>"]
 edition = "2018"
 description = "Low level Stellar types"