diff --git a/pom.xml b/pom.xml
index 2516d11..71d1be5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -48,7 +48,7 @@
     <dependency>
       <groupId>org.antlr</groupId>
       <artifactId>antlr4-runtime</artifactId>
-      <version>4.2</version>
+      <version>4.5.1</version>
     </dependency>
     <dependency>
       <groupId>org.antlr</groupId>
@@ -117,6 +117,26 @@
       <artifactId>slf4j-log4j12</artifactId>
       <version>1.7.5</version>
     </dependency>
+    <dependency>
+      <groupId>eu.clarin.sru.fcs</groupId>
+      <artifactId>fcs-simple-endpoint</artifactId>
+      <version>1.3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.lucene</groupId>
+      <artifactId>lucene-core</artifactId>
+      <version>5.2.1</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.lucene</groupId>
+      <artifactId>lucene-analyzers-common</artifactId>
+      <version>5.2.1</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.lucene</groupId>
+      <artifactId>lucene-queryparser</artifactId>
+      <version>5.2.1</version>
+    </dependency>
   </dependencies>
   <build>
     <sourceDirectory>${basedir}/src/main/java</sourceDirectory>