diff --git a/plugin/pom.xml b/plugin/pom.xml
index 61904b7..e3927d2 100644
--- a/plugin/pom.xml
+++ b/plugin/pom.xml
@@ -20,11 +20,16 @@
             <version>${minecraft.version}-${bukkit.version}-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
-        <!--Bukkit API-->
+        <dependency> <!-- Spigot (this includes Spigot API, Bukkit API, Craftbukkit and NMS) -->
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot</artifactId>
+            <version>1.12-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
         <dependency>
             <groupId>org.bukkit</groupId>
-            <artifactId>bukkit</artifactId>
-            <version>${minecraft.version}-${bukkit.version}-SNAPSHOT</version>
+            <artifactId>craftbukkit</artifactId>
+            <version>1.12-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -55,11 +60,11 @@
         </resources>
         <plugins>
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                 </configuration>
             </plugin>
         </plugins>
diff --git a/plugin/src/main/java/cz/boosik/boosCooldown/Managers/BoosConfigManager.java b/plugin/src/main/java/cz/boosik/boosCooldown/Managers/BoosConfigManager.java
index 63cff09..148ac17 100644
--- a/plugin/src/main/java/cz/boosik/boosCooldown/Managers/BoosConfigManager.java
+++ b/plugin/src/main/java/cz/boosik/boosCooldown/Managers/BoosConfigManager.java
@@ -3,7 +3,9 @@ package cz.boosik.boosCooldown.Managers;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
 
@@ -313,30 +315,19 @@ public class BoosConfigManager {
         return conf.getString("options.messages.paid_for_command", "Price of &command& was %s and you now have %s");
     }
 
-    static String getPotionEffect(String regexCommand, Player player) {
-        String effect = "";
-        String temp;
-        String[] command;
+    static Map<String, Integer> getPotionEffects(String regexCommand, Player player) {
         String group = getCommandGroup(player);
-        temp = conf.getString("commands.groups." + group + "." + regexCommand + ".potion", "");
-        command = temp.split(",");
-        if (command.length == 2) {
-            effect = command[0];
-        }
-        return effect;
-    }
+        Map<String, Integer> result = new HashMap<>();
+        List<String> temp = conf.getStringList("commands.groups." + group + "." + regexCommand + ".potion");
+        temp.forEach(entry -> {
+            String[] item;
+            item = entry.split(",");
+            if (item.length == 2) {
+                result.put(item[0], Integer.valueOf(item[1]));
+            }
+        });
 
-    static int getPotionEffectStrength(String regexCommand, Player player) {
-        int effect = 0;
-        String temp;
-        String[] command;
-        String group = getCommandGroup(player);
-        temp = conf.getString("commands.groups." + group + "." + regexCommand + ".potion", "");
-        command = temp.split(",");
-        if (command.length == 2) {
-            effect = Integer.valueOf(command[1]);
-        }
-        return effect;
+        return result;
     }
 
     public static double getPrice(String regexCommand, Player player) {
diff --git a/plugin/src/main/java/cz/boosik/boosCooldown/Managers/BoosWarmUpManager.java b/plugin/src/main/java/cz/boosik/boosCooldown/Managers/BoosWarmUpManager.java
index 49adc18..8df5e0d 100644
--- a/plugin/src/main/java/cz/boosik/boosCooldown/Managers/BoosWarmUpManager.java
+++ b/plugin/src/main/java/cz/boosik/boosCooldown/Managers/BoosWarmUpManager.java
@@ -16,21 +16,13 @@ public class BoosWarmUpManager {
 
     private static final ConcurrentHashMap<String, BoosWarmUpTimer> playercommands = new ConcurrentHashMap<>();
 
-    private static void applyPotionEffect(Player player, String regexCommand,
-                                          int warmUpSeconds) {
-        String potion = BoosConfigManager.getPotionEffect(regexCommand, player);
-        if (potion.equals("")) {
-            return;
-        }
-        int potionStrength = BoosConfigManager.getPotionEffectStrength(
-                regexCommand, player);
-        if (potionStrength == 0) {
-            return;
-        }
-        PotionEffectType effect = PotionEffectType.getByName(potion);
-        player.addPotionEffect(
-                effect.createEffect(warmUpSeconds * 40, potionStrength - 1),
-                true);
+    private static void applyPotionEffect(Player player, String regexCommand, int warmUpSeconds) {
+        BoosConfigManager.getPotionEffects(regexCommand, player).forEach((potion, potionStrength) -> {
+            PotionEffectType effect = PotionEffectType.getByName(potion);
+            player.addPotionEffect(
+                    effect.createEffect(warmUpSeconds * 20, potionStrength - 1),
+                    true);
+        });
     }
 
     public static void cancelWarmUps(Player player) {
diff --git a/plugin/src/main/resources/config.yml b/plugin/src/main/resources/config.yml
index e99d1fb..c002cda 100644
--- a/plugin/src/main/resources/config.yml
+++ b/plugin/src/main/resources/config.yml
@@ -147,7 +147,9 @@ commands:
         price: 10.0
         limit: 5
         #potion effect and its strength that will affect player for the warmup time (5 seconds here) has to be one from this list: https://hub.spigotmc.org/javadocs/spigot/org/bukkit/potion/PotionEffectType.html
-        potion: WEAKNESS,3
+        potion:
+        - WEAKNESS,3
+        - SLOW,5
       /test:
         #message that is sent to player when he uses this command
         message: You just used /test!
diff --git a/plugin/src/main/resources/plugin.yml b/plugin/src/main/resources/plugin.yml
index 54891c0..4ec9f2d 100644
--- a/plugin/src/main/resources/plugin.yml
+++ b/plugin/src/main/resources/plugin.yml
@@ -1,6 +1,6 @@
 name: boosCooldowns
 main: cz.boosik.boosCooldown.BoosCoolDown
-version: 3.13.4
+version: 3.14.0
 authors: [LordBoos (boosik)]
 softdepend: [Vault, PlayerPoints]
 description: >
diff --git a/pom.xml b/pom.xml
index 72f348d..e07bd71 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,12 +11,12 @@
     <packaging>pom</packaging>
 	<url>http://maven.apache.org</url>
 	<properties>
-		<boosCooldowns.version>3.13.4</boosCooldowns.version>
+		<boosCooldowns.version>3.14.0</boosCooldowns.version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<minecraft.version>1.11</minecraft.version>
+		<minecraft.version>1.12</minecraft.version>
 		<bukkit.version>R0.1</bukkit.version>
-		<bukkit.packet>v1_11_R1</bukkit.packet>
+		<bukkit.packet>v1_12_R1</bukkit.packet>
 	</properties>
 	<pluginRepositories>
 		<pluginRepository>
@@ -45,9 +45,13 @@
 			<url>http://nexus.hc.to/content/repositories/pub_releases</url>
 		</repository>
 		<repository>
-			<id>spigot-repo</id>
+			<id>spigot-repo-old</id>
 			<url>http://repo.md-5.net/content/repositories/snapshots/</url>
 		</repository>
+		<repository>
+			<id>spigot-repo</id>
+			<url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
+		</repository>
         <repository>
             <id>elmakers-spigot-repo</id>
             <url>http://maven.elmakers.com/repository/</url>