diff --git a/Cargo.lock b/Cargo.lock
index f63922e..5b60673 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -362,7 +362,7 @@ checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
 
 [[package]]
 name = "parser-gen"
-version = "0.2.2"
+version = "0.2.3-alpha.0"
 dependencies = [
  "lalrpop",
 ]
diff --git a/parser-gen/Cargo.toml b/parser-gen/Cargo.toml
index 00d3e3e..adaf7c2 100644
--- a/parser-gen/Cargo.toml
+++ b/parser-gen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "parser-gen"
-version = "0.2.2"
+version = "0.2.3-alpha.0"
 authors = ["Edouard Oger <eoger@fastmail.com>"]
 edition = "2018"
 license = "MPL-2.0"