diff --git a/generator/build.gradle b/generator/build.gradle
index 65babd6..b5f160c 100644
--- a/generator/build.gradle
+++ b/generator/build.gradle
@@ -17,7 +17,7 @@ repositories {
 }
 
 group = 'net.codecrete.qrbill'
-version = '3.0.5'
+version = '3.0.6'
 archivesBaseName = 'qrbill-generator'
 
 sourceCompatibility = 1.8
@@ -135,7 +135,7 @@ tasks.withType(JavaCompile) {
 dependencies {
     api 'org.apache.pdfbox:pdfbox:2.0.26'
     implementation 'io.nayuki:qrcodegen:1.8.0'
-    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.2'
-    testImplementation 'org.junit.jupiter:junit-jupiter-params:5.8.2'
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.2'
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.9.1'
+    testImplementation 'org.junit.jupiter:junit-jupiter-params:5.9.1'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.9.1'
 }