diff --git a/pom.xml b/pom.xml
index f960fe8..43b30dc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,28 +20,28 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-annotations</artifactId>
-            <version>2.8.4</version>
+            <version>2.8.5</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-core</artifactId>
-            <version>2.8.4</version>
+            <version>2.8.5</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.8.4</version>
+            <version>2.8.5</version>
         </dependency>
         <!-- Tika -->
         <dependency>
             <groupId>org.apache.tika</groupId>
             <artifactId>tika-core</artifactId>
-            <version>1.13</version>
+            <version>1.14</version>
         </dependency>
         <dependency>
             <groupId>org.apache.tika</groupId>
             <artifactId>tika-parsers</artifactId>
-            <version>1.13</version>
+            <version>1.14</version>
         </dependency>
         <!-- commons -->
         <dependency>
@@ -53,28 +53,28 @@
         <dependency>
             <groupId>org.apache.lucene</groupId>
             <artifactId>lucene-analyzers-common</artifactId>
-            <version>6.2.1</version>
+            <version>6.3.0</version>
         </dependency>
         <!-- Spring -->
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>
-            <version>4.3.3.RELEASE</version>
+            <version>4.3.4.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-web</artifactId>
-            <version>4.3.3.RELEASE</version>
+            <version>4.3.4.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context</artifactId>
-            <version>4.3.3.RELEASE</version>
+            <version>4.3.4.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-actuator</artifactId>
-            <version>1.4.1.RELEASE</version>
+            <version>1.4.2.RELEASE</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.springframework.boot</groupId>
@@ -85,7 +85,7 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
-            <version>1.4.1.RELEASE</version>
+            <version>1.4.2.RELEASE</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.springframework.boot</groupId>
@@ -96,30 +96,30 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-log4j2</artifactId>
-            <version>1.4.1.RELEASE</version>
+            <version>1.4.2.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
-            <version>1.4.1.RELEASE</version>
+            <version>1.4.2.RELEASE</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
-            <version>4.3.3.RELEASE</version>
+            <version>4.3.4.RELEASE</version>
             <scope>test</scope>
         </dependency>
         <!-- Springfox -->
         <dependency>
             <groupId>io.springfox</groupId>
             <artifactId>springfox-swagger2</artifactId>
-            <version>2.6.0</version>
+            <version>2.6.1</version>
         </dependency>
         <dependency>
             <groupId>io.springfox</groupId>
             <artifactId>springfox-swagger-ui</artifactId>
-            <version>2.6.0</version>
+            <version>2.6.1</version>
         </dependency>
         <!-- Log4j -->
         <dependency>