diff --git a/fftw-src/Cargo.toml b/fftw-src/Cargo.toml
index 60a8adf3..461145d3 100644
--- a/fftw-src/Cargo.toml
+++ b/fftw-src/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fftw-src"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["Toshiki Teramura <toshiki.teramura@gmail.com>"]
 edition = "2018"