diff --git a/pom.xml b/pom.xml
index 2178b6a..c40cf6f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
     <groupId>com.songoda</groupId>
     <artifactId>EpicVouchers</artifactId>
     <modelVersion>4.0.0</modelVersion>
-    <version>2.1.17</version>
+    <version>2.1.18</version>
     <build>
         <defaultGoal>clean install</defaultGoal>
         <finalName>EpicVouchers-${project.version}</finalName>
diff --git a/src/main/java/com/songoda/epicvouchers/voucher/Voucher.java b/src/main/java/com/songoda/epicvouchers/voucher/Voucher.java
index 98cc050..d860908 100644
--- a/src/main/java/com/songoda/epicvouchers/voucher/Voucher.java
+++ b/src/main/java/com/songoda/epicvouchers/voucher/Voucher.java
@@ -1,5 +1,8 @@
 package com.songoda.epicvouchers.voucher;
 
+import com.songoda.core.compatibility.ServerVersion;
+import com.songoda.core.nms.NmsManager;
+import com.songoda.core.nms.nbt.NBTItem;
 import com.songoda.core.utils.TextUtils;
 import com.songoda.epicvouchers.EpicVouchers;
 import com.songoda.epicvouchers.events.ForceRedeemEvent;
@@ -94,15 +97,22 @@ public class Voucher {
             meta.addItemFlags(ItemFlag.HIDE_ENCHANTS);
         }
 
-        if (unbreakable) {
-            meta.setUnbreakable(true);
-        }
-
         if (hideAttributes) {
             meta.addItemFlags(ItemFlag.HIDE_ATTRIBUTES);
             meta.addItemFlags(ItemFlag.HIDE_UNBREAKABLE);
         }
-        item.setItemMeta(meta);
+
+        if (unbreakable) {
+            if (ServerVersion.isServerVersionAtLeast(ServerVersion.V1_9)) {
+                meta.setUnbreakable(true);
+                item.setItemMeta(meta);
+            } else {
+                item.setItemMeta(meta);
+                NBTItem nbtItem = NmsManager.getNbt().of(item);
+                nbtItem.set("Unbreakable", (byte) 1);
+                item = nbtItem.finish();
+            }
+        }
         return item;
     }