diff --git a/Gemfile.lock b/Gemfile.lock
index e9193e6..3eaf5f2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,8 +9,8 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.7)
-      public_suffix (>= 2.0.2, < 7.0)
+    addressable (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
     bigdecimal (3.1.8)
     byebug (11.1.3)
     crack (1.0.0)
@@ -21,7 +21,7 @@ GEM
     fakeweb (1.3.0)
     hashdiff (1.1.1)
     multi_json (1.15.0)
-    public_suffix (6.0.1)
+    public_suffix (6.0.2)
     rake (13.2.1)
     rexml (3.3.9)
     rspec (3.13.0)
@@ -61,7 +61,7 @@ DEPENDENCIES
   fakeweb
   gtfs!
   rake
-  rspec
+  rspec (>= 2.0.0, >= 0)
   rspec-its
   simplecov
   vcr