diff --git a/pom.xml b/pom.xml
index 4cf1698..9306cb4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -215,6 +215,11 @@
         <artifactId>jackson-databind</artifactId>
         <version>2.4.2</version>
     </dependency>
+    <dependency>
+      <groupId>org.apache.tika</groupId>
+      <artifactId>tika-core</artifactId>
+      <version>2.9.0</version>
+    </dependency>
     <dependency>
       <groupId>org.eclipse.jetty</groupId>
       <artifactId>jetty-server</artifactId>