diff --git a/build.gradle b/build.gradle
index 56f44fa..83370e9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@
 
 apply plugin: 'groovy'
 
-version = "1.21.1"
+version = "1.22.0"
 
 ext {
     groovyVersion = '2.4.7'
@@ -11,6 +11,8 @@ ext {
     VT_DIST_GRADLEW_PREFIX     = 'distributable-gradlew'
     VT_DIST_COMPONENTS_PREFIX  = 'vt-components'
     VT_DIST_EXAMPLE_PREFIX     = 'vt-example'
+
+    materialsVersion = '0.79.0'
 }
 
 // ---------------------------------------------------------------------
@@ -41,7 +43,7 @@ task downloadJarsIntoDriversDir {
       downloadFile('https://repo1.maven.org/maven2/org/apache/commons/commons-math3/3.6.1/commons-math3-3.6.1.jar')
       downloadFile('https://github.com/kazurayam/junit4ks/releases/download/1.6/junit4ks-all.jar')
       downloadFile('https://github.com/kazurayam/ksbackyard/releases/download/0.40.0/ksbackyard-0.40.0.jar')
-      downloadFile('https://github.com/kazurayam/Materials/releases/download/0.78.1/Materials-0.78.1.jar')
+      downloadFile("https://github.com/kazurayam/Materials/releases/download/${materialsVersion}/Materials-${materialsVersion}.jar")
     }
 }
 
@@ -53,7 +55,7 @@ task drivers {
 
 
 task driversFromMavenLocal(type: Copy) {
-    from file("${System.getProperty('user.home')}/.m2/repository/com/kazurayam/Materials/0.78.1/Materials-0.78.1.jar")
+    from file("${System.getProperty('user.home')}/.m2/repository/com/kazurayam/Materials/${materialsVersion}/Materials-${materialsVersion}.jar")
     into file("$projectDir/Drivers")
 }