diff --git a/Gemfile.lock b/Gemfile.lock
index 210bd41..9e1a71e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,8 +30,8 @@ GEM
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
     brakeman (5.1.1)
     coderay (1.1.2)
@@ -132,7 +132,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (4.0.6)
+    public_suffix (5.0.1)
     rack (3.0.3)
     rainbow (3.0.0)
     rake (13.0.6)
@@ -204,7 +204,7 @@ GEM
       diff-lcs (~> 1.3)
       parser (>= 3.1.0)
     vcr (6.0.0)
-    webmock (3.14.0)
+    webmock (3.18.1)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
@@ -225,7 +225,7 @@ DEPENDENCIES
   simplecov-html
   simplecov-lcov
   vcr (~> 6.0.0)
-  webmock (~> 3.14.0)
+  webmock (~> 3.18.1)
 
 BUNDLED WITH
    2.1.4
diff --git a/circlemator.gemspec b/circlemator.gemspec
index 6e1ef9c..6047c1b 100644
--- a/circlemator.gemspec
+++ b/circlemator.gemspec
@@ -32,7 +32,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rake', '~> 13.0'
   spec.add_development_dependency 'rubocop'
   spec.add_development_dependency 'vcr', '~> 6.0.0'
-  spec.add_development_dependency 'webmock', '~> 3.14.0'
+  spec.add_development_dependency 'webmock', '~> 3.18.1'
   spec.add_development_dependency 'rspec', '~> 3.10.0'
   spec.add_development_dependency 'guard-rspec', '~> 4.7.3'
   spec.add_development_dependency 'simplecov'