diff --git a/MetricsEvaluatorCode/Ruby/fairmetrics/Gemfile.lock b/MetricsEvaluatorCode/Ruby/fairmetrics/Gemfile.lock
index 0d179b0..95656db 100644
--- a/MetricsEvaluatorCode/Ruby/fairmetrics/Gemfile.lock
+++ b/MetricsEvaluatorCode/Ruby/fairmetrics/Gemfile.lock
@@ -41,8 +41,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     appengine (0.4.6)
       google-cloud-env (~> 1.0)
       stackdriver (~> 0.15)
@@ -184,7 +184,7 @@ GEM
       json-schema (~> 2.8)
     openssl (2.1.2)
     os (1.0.1)
-    public_suffix (3.0.3)
+    public_suffix (5.0.0)
     puma (3.12.6)
     rack (2.2.3)
     rack-cors (1.0.5)