diff --git a/src/com/pretzel/dev/villagertradelimiter/VillagerTradeLimiter.java b/src/com/pretzel/dev/villagertradelimiter/VillagerTradeLimiter.java
index 10a7043..d837305 100644
--- a/src/com/pretzel/dev/villagertradelimiter/VillagerTradeLimiter.java
+++ b/src/com/pretzel/dev/villagertradelimiter/VillagerTradeLimiter.java
@@ -7,7 +7,6 @@ import com.pretzel.dev.villagertradelimiter.lib.Util;
 import com.pretzel.dev.villagertradelimiter.listeners.PlayerListener;
 import org.bukkit.ChatColor;
 import org.bukkit.configuration.file.FileConfiguration;
-import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
 
diff --git a/src/com/pretzel/dev/villagertradelimiter/nms/NBTContainer.java b/src/com/pretzel/dev/villagertradelimiter/nms/NBTContainer.java
index 84f7bdc..a69d654 100644
--- a/src/com/pretzel/dev/villagertradelimiter/nms/NBTContainer.java
+++ b/src/com/pretzel/dev/villagertradelimiter/nms/NBTContainer.java
@@ -18,7 +18,7 @@ public class NBTContainer {
         final CraftEntity craftEntity = new CraftEntity(nms);
         final NMSEntity nmsEntity = new NMSEntity(nms);
         final Class<?> tgc;
-        if(nms.getVersion().compareTo("v1.17_R1") < 0)
+        if(nms.getVersion().compareTo("v1_17_R1") < 0)
             tgc = nms.getNMSClass("server."+nms.getVersion()+".NBTTagCompound");
         else
             tgc = nms.getNMSClass("nbt.NBTTagCompound");
diff --git a/src/com/pretzel/dev/villagertradelimiter/nms/NBTTagList.java b/src/com/pretzel/dev/villagertradelimiter/nms/NBTTagList.java
index 7fcb2d2..2f167aa 100644
--- a/src/com/pretzel/dev/villagertradelimiter/nms/NBTTagList.java
+++ b/src/com/pretzel/dev/villagertradelimiter/nms/NBTTagList.java
@@ -11,7 +11,7 @@ public class NBTTagList
     public NBTTagList(final NMS nms, final Object self) {
         this.nms = nms;
         this.self = self;
-        if(nms.getVersion().compareTo("v1.17_R1") < 0)
+        if(nms.getVersion().compareTo("v1_17_R1") < 0)
             this.c = nms.getNMSClass("server."+nms.getVersion()+".NBTTagList");
         else
             this.c = nms.getNMSClass("nbt.NBTTagList");
diff --git a/src/com/pretzel/dev/villagertradelimiter/nms/NMSEntity.java b/src/com/pretzel/dev/villagertradelimiter/nms/NMSEntity.java
index 20a3074..eaea011 100644
--- a/src/com/pretzel/dev/villagertradelimiter/nms/NMSEntity.java
+++ b/src/com/pretzel/dev/villagertradelimiter/nms/NMSEntity.java
@@ -8,7 +8,7 @@ public class NMSEntity {
 
     public NMSEntity(final NMS nms) {
         this.nms = nms;
-        if(nms.getVersion().compareTo("v1.17_R1") < 0)
+        if(nms.getVersion().compareTo("v1_17_R1") < 0)
             this.c = nms.getNMSClass("server."+nms.getVersion()+".Entity");
         else
             this.c = nms.getNMSClass("world.entity.Entity");