diff --git a/pom.xml b/pom.xml
index dea13b8..9a0ed8b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,6 @@
 	<packaging>war</packaging>
 
 	<name>KorapSRU</name>
-	<url>http://maven.apache.org</url>
 
 	<build>
 		<plugins>
@@ -17,8 +16,8 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>3.5.1</version>
 				<configuration>
-					<source>1.7</source>
-					<target>1.7</target>
+					<source>1.8</source>
+					<target>1.8</target>
 				</configuration>
 			</plugin>
 			<plugin>
@@ -61,17 +60,17 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.5.6</version>
+			<version>4.5.9</version>
 		</dependency>
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-databind</artifactId>
-			<version>2.9.8</version>
+			<version>[2.9.9,)</version>
 		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-simple</artifactId>
-			<version>1.7.25</version>
+			<version>1.7.26</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.directory.studio</groupId>