diff --git a/build.gradle.kts b/build.gradle.kts
index d9b018d8..5857ac40 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-val releaseVersion = "1.6.3"
+val releaseVersion = "1.6.4"
 val developmentVersion = "2.0-SNAPSHOT"
 
 version = if( java.lang.Boolean.getBoolean( "release" ) ) releaseVersion else developmentVersion