diff --git a/Cargo.lock b/Cargo.lock
index 49849a6a..852eedd2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1533,7 +1533,7 @@ dependencies = [
 
 [[package]]
 name = "impg"
-version = "0.5.1"
+version = "0.5.0"
 dependencies = [
  "ahash",
  "allwave",
diff --git a/Cargo.toml b/Cargo.toml
index 429d7e40..0d66840e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "impg"
-version = "0.5.1"
+version = "0.5.0"
 edition = "2021"
 authors = ["Andrea Guarracino <aguarracino@tgen.org>"]