diff --git a/build.gradle b/build.gradle
index dc31b6e9..8dfbd5a8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -58,11 +58,19 @@ compileJava {
     options.warnings = false
 }
 
+def addOpensArgs = [
+    '--add-opens=java.base/java.lang=ALL-UNNAMED', // Upgrade to Java 21
+    '--add-opens=java.base/java.time=ALL-UNNAMED', // Upgrade to Java 21
+]
+
 task execute(type: JavaExec) {
     main = findProperty("mainClass") ?: ""
     classpath = sourceSets.main.runtimeClasspath
-    jvmArgs += '--add-opens=java.base/java.lang=ALL-UNNAMED' // Upgrade to Java 21
-    jvmArgs += '--add-opens=java.base/java.time=ALL-UNNAMED' // Upgrade to Java 21
+    jvmArgs addOpensArgs
+}
+
+test {
+    jvmArgs addOpensArgs
 }
 
 license {