diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5205c475..635aebd9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 set (CMAKE_FIND_NO_INSTALL_PREFIX TRUE FORCE)
 cmake_minimum_required (VERSION 3.13)
-project(treelite LANGUAGES CXX C VERSION 2.2.1)
+project(treelite LANGUAGES CXX C VERSION 2.2.2)
 
 set(CMAKE_CXX_STANDARD 14)
 
diff --git a/python/treelite/VERSION b/python/treelite/VERSION
index c043eea7..b1b25a5f 100644
--- a/python/treelite/VERSION
+++ b/python/treelite/VERSION
@@ -1 +1 @@
-2.2.1
+2.2.2
diff --git a/runtime/java/treelite4j/pom.xml b/runtime/java/treelite4j/pom.xml
index a694cc12..d26423b5 100644
--- a/runtime/java/treelite4j/pom.xml
+++ b/runtime/java/treelite4j/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>ml.dmlc</groupId>
     <artifactId>treelite4j</artifactId>
-    <version>2.2.1</version>
+    <version>2.2.2</version>
     <packaging>jar</packaging>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/runtime/python/treelite_runtime/VERSION b/runtime/python/treelite_runtime/VERSION
index c043eea7..b1b25a5f 100644
--- a/runtime/python/treelite_runtime/VERSION
+++ b/runtime/python/treelite_runtime/VERSION
@@ -1 +1 @@
-2.2.1
+2.2.2