diff --git a/Gemfile b/Gemfile
index df9765e9b8a..e1407e3191f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -60,7 +60,7 @@ gem 'azure-storage-blob', git: 'https://github.com/sethboyles/azure-storage-ruby
 gem 'fog-aliyun'
 gem 'fog-aws'
 gem 'fog-azure-rm', git: 'https://github.com/fog/fog-azure-rm.git', branch: 'fog-arm-cf'
-gem 'fog-core', '~> 2.1.2'
+gem 'fog-core', '~> 2.4.0'
 gem 'fog-google', '~> 1.24.1'
 gem 'fog-local'
 gem 'fog-openstack'
diff --git a/Gemfile.lock b/Gemfile.lock
index 6233f87f88c..c4254adb405 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -180,10 +180,10 @@ GEM
       fog-core (~> 2.1)
       fog-json (~> 1.1)
       fog-xml (~> 0.1)
-    fog-core (2.1.2)
+    fog-core (2.4.0)
       builder
-      excon (~> 0.58)
-      formatador (~> 0.2)
+      excon (~> 0.71)
+      formatador (>= 0.2, < 2.0)
       mime-types
     fog-google (1.24.1)
       addressable (>= 2.7.0)
@@ -209,7 +209,7 @@ GEM
     fog-xml (0.1.4)
       fog-core
       nokogiri (>= 1.5.11, < 2.0.0)
-    formatador (0.3.0)
+    formatador (1.1.0)
     google-apis-compute_v1 (0.86.0)
       google-apis-core (>= 0.11.0, < 2.a)
     google-apis-core (0.11.3)
@@ -609,7 +609,7 @@ DEPENDENCIES
   fog-aliyun
   fog-aws
   fog-azure-rm!
-  fog-core (~> 2.1.2)
+  fog-core (~> 2.4.0)
   fog-google (~> 1.24.1)
   fog-local
   fog-openstack