diff --git a/android/build.gradle b/android/build.gradle
index 1aa8619..58caade 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -49,7 +49,7 @@ afterEvaluate {
                 // You can then customize attributes of the publication as shown below.
                 groupId = 'org.bitcoindevkit'
                 artifactId = 'bdk-android'
-                version = '0.3.2'
+                version = '0.4.0'
 
                 pom {
                     name = 'bdk-android'
diff --git a/jvm/build.gradle b/jvm/build.gradle
index 34b8073..c106561 100644
--- a/jvm/build.gradle
+++ b/jvm/build.gradle
@@ -38,7 +38,7 @@ afterEvaluate {
 
                 groupId = 'org.bitcoindevkit'
                 artifactId = 'bdk-jvm'
-                version = '0.3.2'
+                version = '0.4.0'
 
                 pom {
                     name = 'bdk-jvm'