diff --git a/Cargo.lock b/Cargo.lock
index 92e2653..a6b3038 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,7 +10,7 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "bcf_reader"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "byteorder",
  "flate2",
diff --git a/Cargo.toml b/Cargo.toml
index 1529ba4..ed824fa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bcf_reader"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 description = "a small, lightweight, pure-Rust library to allow efficient, cross-platform access to genotype data in BCF files"
 license = "MIT"