diff --git a/hephaestus/Gemfile b/hephaestus/Gemfile
index 26d58990..756e7966 100644
--- a/hephaestus/Gemfile
+++ b/hephaestus/Gemfile
@@ -18,7 +18,7 @@ gem "oj"
 gem "rake"
 gem "tire"
 gem "pry", :require => false
-gem "json", "~> 1.7.7"
+gem "json", "~> 2.3.1"
 gem "httparty"
 gem "ruby-progressbar", require: false
 
diff --git a/hephaestus/Gemfile.lock b/hephaestus/Gemfile.lock
index b363f873..21f1b7ce 100644
--- a/hephaestus/Gemfile.lock
+++ b/hephaestus/Gemfile.lock
@@ -50,7 +50,7 @@ GEM
     httpi (1.1.1)
       rack
     i18n (0.6.5)
-    json (1.7.7)
+    json (2.3.1)
     log4r (1.1.10)
     metaclass (0.0.4)
     method_source (0.8.1)
@@ -140,7 +140,7 @@ DEPENDENCIES
   hashie
   httparty
   httpi
-  json (~> 1.7.7)
+  json (~> 2.3.1)
   log4r
   mapa76-core!
   minitest