diff --git a/connector/pom.xml b/connector/pom.xml
index 9a6a53777..b05a969b9 100644
--- a/connector/pom.xml
+++ b/connector/pom.xml
@@ -85,36 +85,18 @@
             <version>${fastutil.version}</version>
             <scope>compile</scope>
         </dependency>
-        <dependency>
-            <groupId>com.nukkitx.fastutil</groupId>
-            <artifactId>fastutil-int-float-maps</artifactId>
-            <version>${fastutil.version}</version>
-            <scope>compile</scope>
-        </dependency>
         <dependency>
             <groupId>com.nukkitx.fastutil</groupId>
             <artifactId>fastutil-long-long-maps</artifactId>
             <version>${fastutil.version}</version>
             <scope>compile</scope>
         </dependency>
-        <dependency>
-            <groupId>com.nukkitx.fastutil</groupId>
-            <artifactId>fastutil-object-long-maps</artifactId>
-            <version>${fastutil.version}</version>
-            <scope>compile</scope>
-        </dependency>
         <dependency>
             <groupId>com.nukkitx.fastutil</groupId>
             <artifactId>fastutil-int-byte-maps</artifactId>
             <version>${fastutil.version}</version>
             <scope>compile</scope>
         </dependency>
-        <dependency>
-            <groupId>com.nukkitx.fastutil</groupId>
-            <artifactId>fastutil-int-double-maps</artifactId>
-            <version>${fastutil.version}</version>
-            <scope>compile</scope>
-        </dependency>
         <dependency>
             <groupId>com.nukkitx.fastutil</groupId>
             <artifactId>fastutil-int-boolean-maps</artifactId>
@@ -127,12 +109,6 @@
             <version>${fastutil.version}</version>
             <scope>compile</scope>
         </dependency>
-        <dependency>
-            <groupId>com.nukkitx.fastutil</groupId>
-            <artifactId>fastutil-object-byte-maps</artifactId>
-            <version>${fastutil.version}</version>
-            <scope>compile</scope>
-        </dependency>
         <dependency>
             <groupId>com.nukkitx.fastutil</groupId>
             <artifactId>fastutil-object-object-maps</artifactId>