diff --git a/Gemfile.jruby-1.9.lock b/Gemfile.jruby-1.9.lock
index 781f92c5d..50941b629 100644
--- a/Gemfile.jruby-1.9.lock
+++ b/Gemfile.jruby-1.9.lock
@@ -8,7 +8,7 @@ PATH
       filesize (= 0.0.4)
       gems (~> 0.8.3)
       i18n (= 0.6.9)
-      jrjackson (~> 0.2.9)
+      jrjackson (~> 0.3.5)
       minitar (~> 0.5.4)
       pry (~> 0.10.1)
       stud (~> 0.0.19)
@@ -66,10 +66,10 @@ GEM
       domain_name (~> 0.5)
     i18n (0.6.9)
     insist (1.0.0)
-    jrjackson (0.2.9)
-    json (1.8.3-java)
-    kramdown (1.9.0)
-    logstash-devutils (0.0.18-java)
+    jrjackson (0.3.5)
+    json (1.8.2-java)
+    kramdown (1.8.0)
+    logstash-devutils (0.0.15-java)
       gem_publisher
       insist (= 1.0.0)
       kramdown
diff --git a/lib/logstash/json.rb b/lib/logstash/json.rb
index 5079de759..adbabff18 100644
--- a/lib/logstash/json.rb
+++ b/lib/logstash/json.rb
@@ -32,15 +32,23 @@ module LogStash
     ### JRuby
 
     def jruby_load(data, options = {})
-      options[:symbolize_keys] ? JrJackson::Raw.parse_sym(data) : JrJackson::Raw.parse_raw(data)
+      # TODO [guyboertje] remove these comments in 5.0
+      # options[:symbolize_keys] ? JrJackson::Raw.parse_sym(data) : JrJackson::Raw.parse_raw(data)
+
+      JrJackson::Ruby.parse(data, options)
+
     rescue JrJackson::ParseError => e
       raise LogStash::Json::ParserError.new(e.message)
     end
 
     def jruby_dump(o)
+      # TODO [guyboertje] remove these comments in 5.0
       # test for enumerable here to work around an omission in JrJackson::Json.dump to
       # also look for Java::JavaUtil::ArrayList, see TODO submit issue
-      o.is_a?(Enumerable) ? JrJackson::Raw.generate(o) : JrJackson::Json.dump(o)
+      # o.is_a?(Enumerable) ? JrJackson::Raw.generate(o) : JrJackson::Json.dump(o)
+
+      JrJackson::Base.generate(o, {})
+
     rescue => e
       raise LogStash::Json::GeneratorError.new(e.message)
     end
diff --git a/logstash-core.gemspec b/logstash-core.gemspec
index fff132510..1b4531b02 100644
--- a/logstash-core.gemspec
+++ b/logstash-core.gemspec
@@ -39,7 +39,7 @@ Gem::Specification.new do |gem|
 
   if RUBY_PLATFORM == 'java'
     gem.platform = RUBY_PLATFORM
-    gem.add_runtime_dependency "jrjackson", "~> 0.2.9" #(Apache 2.0 license)
+    gem.add_runtime_dependency "jrjackson", "~> 0.3.5" #(Apache 2.0 license)
   else
     gem.add_runtime_dependency "oj" #(MIT-style license)
   end