diff --git a/CHANGELOG.md b/CHANGELOG.md
index f466fbe..683c443 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,10 +4,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
-### Added
-- Add `pyproject.toml` 
+## [0.1.5] - 2022-02-21
+### Fixed
+- Fixed bug in `predict` of `Estimator`. [#30](https://github.com/feos-org/feos-core/pull/30)
 
+### Added
+- Add `pyproject.toml`. [#29](https://github.com/feos-org/feos-core/pull/29)
 
 ## [0.1.4] - 2022-02-18
 ### Fixed
diff --git a/Cargo.toml b/Cargo.toml
index 925427c..b5aefb2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "feos-core"
-version = "0.1.4"
+version = "0.1.5"
 authors = ["Gernot Bauer <bauer@itt.uni-stuttgart.de>",
            "Philipp Rehner <prehner@ethz.ch"]
 edition = "2018"
diff --git a/build_wheel/Cargo.toml b/build_wheel/Cargo.toml
index d62c77e..eaf3852 100644
--- a/build_wheel/Cargo.toml
+++ b/build_wheel/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "feos_core"
-version = "0.1.4"
+version = "0.1.5"
 authors = ["Gernot Bauer <bauer@itt.uni-stuttgart.de>",
            "Philipp Rehner <prehner@ethz.ch"]
 edition = "2018"
diff --git a/src/python/utils.rs b/src/python/utils.rs
index 2a1bb18..ea42cd4 100644
--- a/src/python/utils.rs
+++ b/src/python/utils.rs
@@ -313,7 +313,7 @@ macro_rules! impl_estimator {
                     .0
                     .predict(&eos.0)?
                     .iter()
-                    .map(|d| PySIArray1(d))
+                    .map(|d| PySIArray1::from(d.clone()))
                     .collect())
             }