diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbf3cf1..cf5b95c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 
+### August 2, 2021 version 1.5.6
  * Fix compatibility with Gradle 7.x ([issue #17](https://github.com/bytedeco/gradle-javacpp/issues/17))
  * Make `BuildTask` properties `public` to allow access with Kotlin DSL ([pull #16](https://github.com/bytedeco/gradle-javacpp/issues/16))
  * Fix `BuildPlugin` incorrectly resetting `javacppBuildParser.outputDirectory` in subprojects ([pull #12](https://github.com/bytedeco/gradle-javacpp/issues/12))
diff --git a/build.gradle b/build.gradle
index 9d33dc2..c523332 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ plugins {
 }
 
 group = 'org.bytedeco'
-version = '1.5.6-SNAPSHOT'
+version = '1.5.6'
 
 repositories {
     mavenLocal()
diff --git a/samples/javacv-demo-kotlin/build.gradle.kts b/samples/javacv-demo-kotlin/build.gradle.kts
index cbe2c91..c015e00 100644
--- a/samples/javacv-demo-kotlin/build.gradle.kts
+++ b/samples/javacv-demo-kotlin/build.gradle.kts
@@ -3,7 +3,7 @@ plugins {
     kotlin("jvm").version("1.3.72")
     // Apply the java-library plugin for API and implementation separation.
     `java-library`
-    id("org.bytedeco.gradle-javacpp-platform").version("1.5.5")
+    id("org.bytedeco.gradle-javacpp-platform").version("1.5.6")
 }
 
 repositories {
@@ -15,7 +15,7 @@ repositories {
 
 dependencies {
     implementation(kotlin("stdlib-jdk8"))
-    implementation("org.bytedeco:javacv-platform:1.5.5")
+    implementation("org.bytedeco:javacv-platform:1.5.6")
 }
 
 tasks {
diff --git a/samples/javacv-demo/build.gradle b/samples/javacv-demo/build.gradle
index 5647c8d..6d21cbe 100644
--- a/samples/javacv-demo/build.gradle
+++ b/samples/javacv-demo/build.gradle
@@ -1,10 +1,10 @@
 plugins {
     id 'java-library'
-    id 'org.bytedeco.gradle-javacpp-platform' version '1.5.5'
+    id 'org.bytedeco.gradle-javacpp-platform' version '1.5.6'
 }
 
 group = 'org.bytedeco'
-version = '1.5.5'
+version = '1.5.6'
 
 repositories {
     mavenLocal()
@@ -13,9 +13,9 @@ repositories {
 }
 
 dependencies {
-    api "org.bytedeco:javacv-platform:1.5.5"
-//    api "org.bytedeco:opencv-platform-gpu:4.5.1-$version"
-//    api "org.bytedeco:ffmpeg-platform-gpl:4.3.2-$version"
+    api "org.bytedeco:javacv-platform:1.5.6"
+//    api "org.bytedeco:opencv-platform-gpu:4.5.3-$version"
+//    api "org.bytedeco:ffmpeg-platform-gpl:4.4-$version"
     testImplementation 'junit:junit:4.13.1'
 }
 
diff --git a/samples/javacv-demo/settings.gradle b/samples/javacv-demo/settings.gradle
index 0072f45..7ac4772 100644
--- a/samples/javacv-demo/settings.gradle
+++ b/samples/javacv-demo/settings.gradle
@@ -9,4 +9,4 @@ pluginManagement {
 
 rootProject.name = 'javacv-demo'
 
-gradle.rootProject { ext.javacppVersion = '1.5.5' }
+gradle.rootProject { ext.javacppVersion = '1.5.6' }
diff --git a/samples/zlib/build.gradle b/samples/zlib/build.gradle
index 4ad56da..60f8b8a 100644
--- a/samples/zlib/build.gradle
+++ b/samples/zlib/build.gradle
@@ -1,6 +1,6 @@
 plugins {
     id 'java-library'
-    id 'org.bytedeco.gradle-javacpp-build' version '1.5.5'
+    id 'org.bytedeco.gradle-javacpp-build' version '1.5.6'
     id 'maven-publish'
     id 'signing'
 }
diff --git a/samples/zlib/settings.gradle b/samples/zlib/settings.gradle
index 011e40b..73de278 100644
--- a/samples/zlib/settings.gradle
+++ b/samples/zlib/settings.gradle
@@ -9,4 +9,4 @@ pluginManagement {
 
 rootProject.name = 'zlib'
 
-gradle.rootProject { ext.javacppVersion = '1.5.5' }
+gradle.rootProject { ext.javacppVersion = '1.5.6' }