diff --git a/.travis.yml b/.travis.yml
index da542f19..3bcaf8b5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 # https://travis-ci.org/jwtk/jjwt
 
 #sudo: required
+dist: trusty
 language: java
 jdk:
   - openjdk7 # not really openjdk7 - we're just using this travis placeholder for our own Oracle JDK 7 installation
diff --git a/pom.xml b/pom.xml
index 05e3b1bd..d71fb126 100644
--- a/pom.xml
+++ b/pom.xml
@@ -88,7 +88,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <buildNumber>${user.name}-${maven.build.timestamp}</buildNumber>
 
-        <jackson.version>2.9.9.1</jackson.version>
+        <jackson.version>2.9.9.3</jackson.version>
         <orgjson.version>20180130</orgjson.version>
         <gson.version>2.8.5</gson.version>