diff --git a/build.sh b/build.sh
index 50e7381..8ce9e16 100755
--- a/build.sh
+++ b/build.sh
@@ -40,12 +40,13 @@ function check_env
 	fi
 	
 	# Java version check.
+    JAVA_VERSION=17;
 	javaVersionCheck=`javac -version 2>&1`
-	if [[ "$javaVersionCheck" =~ ^.*\ 11. ]]; then
-		echo "Java 11 version requirement..... OK"
+	if [[ "$javaVersionCheck" =~ ^.*\ ${JAVA_VERSION}. ]]; then
+		echo "Java ${JAVA_VERSION} version requirement..... OK"
 		let "okCount+=1"
 	else
-		echo "Java 11 version requirement..... MISSING"
+		echo "Java ${JAVA_VERSION} version requirement..... MISSING"
 	fi
 	
 	# Git check.