diff --git a/CHANGELOG.md b/CHANGELOG.md
index 615e7c7..f388646 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,17 @@
+# 1.2.1 (April 13, 2022)
+
+### Changed
+- Optimize "--output-format numpy" mode, so it doesn't require additional memory when writing output file ([#50]).
+- Bump libs ([#52]).
+
+[#50]: https://github.com/Synerise/cleora/pull/50
+[#52]: https://github.com/Synerise/cleora/pull/52
+
+
 # 1.2.0 (March 17, 2022)
 
 ### Added
-- Use default hasher for vector init. ([#47]).
+- Use default hasher for vector init ([#47]).
 
 [#47]: https://github.com/Synerise/cleora/pull/47
 
diff --git a/Cargo.lock b/Cargo.lock
index 93d5292..f4019d1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -165,7 +165,7 @@ dependencies = [
 
 [[package]]
 name = "cleora"
-version = "1.2.0"
+version = "1.2.1"
 dependencies = [
  "bus",
  "clap 3.1.8",
diff --git a/Cargo.toml b/Cargo.toml
index 147e10f..d685951 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cleora"
-version = "1.2.0"
+version = "1.2.1"
 authors = ["Piotr Babel <piotr.babel@synerise.com>", "Jacek Dabrowski <jack.dabrowski@synerise.com>", "Konrad Goluchowski <konrad.goluchowski@synerise.com>"]
 edition = "2018"
 license-file = "LICENSE"