diff --git a/pom.xml b/pom.xml
index 4562145..abaa5cf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,14 +10,14 @@
     <packaging>war</packaging>
 
     <properties>
-        <gson.version>2.8.1</gson.version>
+        <gson.version>2.8.5</gson.version>
         <log4j.version>1.2.17</log4j.version>
         <commons-io.version>2.5</commons-io.version>
         <junit.version>4.12</junit.version>
         <easymock.version>3.4</easymock.version>
         <powermock-api-easymock.version>1.6.6</powermock-api-easymock.version>
         <powermock-module-junit4.version>1.7.3</powermock-module-junit4.version>
-        <servlet-api>3.0.1</servlet-api>
+        <servlet-api>3.1.0</servlet-api>
         <jacoco-maven-plugin.version>0.7.9</jacoco-maven-plugin.version>
         <sonar-maven-plugin.version>3.0.2</sonar-maven-plugin.version>
         <swagger-maven-plugin-version>3.1.6</swagger-maven-plugin-version>