diff --git a/Gemfile b/Gemfile
index cb6593e5b4d..d95f9fe2aea 100644
--- a/Gemfile
+++ b/Gemfile
@@ -38,7 +38,7 @@ end
 group :doc do
   gem "sdoc", "~> 1.1"
   gem "redcarpet", "~> 3.2.3", platforms: :ruby
-  gem "w3c_validators"
+  gem "w3c_validators", "~> 1.3.6"
   gem "kindlerb", "~> 1.2.0"
   gem "rouge"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 39242f4fbf3..779eca7bb0d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -198,7 +198,7 @@ GEM
     daemons (1.3.1)
     dalli (2.7.10)
     dante (0.2.0)
-    declarative (0.0.10)
+    declarative (0.0.20)
     declarative-option (0.1.0)
     delayed_job (4.1.8)
       activesupport (>= 3.0, < 6.1)
@@ -220,7 +220,7 @@ GEM
     event_emitter (0.2.6)
     eventmachine (1.2.7)
     execjs (2.7.0)
-    faraday (1.0.0)
+    faraday (1.0.1)
       multipart-post (>= 1.2, < 3)
     faraday_middleware (1.0.0.rc1)
       faraday (~> 1.0)
@@ -244,13 +244,14 @@ GEM
       raabro (~> 1.1)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    google-api-client (0.37.2)
+    google-api-client (0.45.0)
       addressable (~> 2.5, >= 2.5.1)
       googleauth (~> 0.9)
       httpclient (>= 2.8.1, < 3.0)
       mini_mime (~> 1.0)
       representable (~> 3.0)
       retriable (>= 2.0, < 4.0)
+      rexml
       signet (~> 0.12)
     google-cloud-core (1.5.0)
       google-cloud-env (~> 1.0)
@@ -265,13 +266,13 @@ GEM
       google-cloud-core (~> 1.2)
       googleauth (~> 0.9)
       mini_mime (~> 1.0)
-    googleauth (0.11.0)
+    googleauth (0.13.1)
       faraday (>= 0.17.3, < 2.0)
       jwt (>= 1.4, < 3.0)
       memoist (~> 0.16)
       multi_json (~> 1.11)
       os (>= 0.9, < 2.0)
-      signet (~> 0.12)
+      signet (~> 0.14)
     hashdiff (1.0.0)
     hiredis (0.6.3)
     hiredis (0.6.3-java)
@@ -286,9 +287,9 @@ GEM
     jdbc-postgres (42.2.6)
     jdbc-sqlite3 (3.28.0)
     jmespath (1.4.0)
-    json (2.3.0)
-    json (2.3.0-java)
-    jwt (2.2.1)
+    json (2.3.1)
+    json (2.3.1-java)
+    jwt (2.2.2)
     kindlerb (1.2.0)
       mustache
       nokogiri
@@ -327,7 +328,7 @@ GEM
     msgpack (1.3.1-java)
     msgpack (1.3.1-x64-mingw32)
     msgpack (1.3.1-x86-mingw32)
-    multi_json (1.14.1)
+    multi_json (1.15.0)
     multipart-post (2.1.1)
     mustache (1.1.1)
     mustermann (1.0.3)
@@ -336,14 +337,14 @@ GEM
     mysql2 (0.5.3-x86-mingw32)
     nio4r (2.5.2)
     nio4r (2.5.2-java)
-    nokogiri (1.10.9)
+    nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.9-java)
-    nokogiri (1.10.9-x64-mingw32)
+    nokogiri (1.10.10-java)
+    nokogiri (1.10.10-x64-mingw32)
       mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.9-x86-mingw32)
+    nokogiri (1.10.10-x86-mingw32)
       mini_portile2 (~> 2.4.0)
-    os (1.0.1)
+    os (1.1.1)
     parallel (1.19.2)
     parser (2.7.1.4)
       ast (~> 2.4.1)
@@ -352,7 +353,7 @@ GEM
     pg (1.2.3-x64-mingw32)
     pg (1.2.3-x86-mingw32)
     psych (3.1.0)
-    public_suffix (4.0.2)
+    public_suffix (4.0.6)
     puma (4.3.1)
       nio4r (~> 2.0)
     puma (4.3.1-java)
@@ -461,7 +462,7 @@ GEM
       rack-protection (>= 2.0.0)
       redis (>= 4.1.0)
     sigdump (0.2.4)
-    signet (0.13.0)
+    signet (0.14.0)
       addressable (~> 2.3)
       faraday (>= 0.17.3, < 2.0)
       jwt (>= 1.5, < 3.0)
@@ -509,9 +510,10 @@ GEM
     useragent (0.16.10)
     vegas (0.1.11)
       rack (>= 1.0.0)
-    w3c_validators (1.3.4)
+    w3c_validators (1.3.6)
       json (>= 1.8)
       nokogiri (~> 1.6)
+      rexml (~> 3.2)
     wdm (0.1.1)
     webdrivers (4.1.3)
       nokogiri (~> 1.6)
@@ -607,7 +609,7 @@ DEPENDENCIES
   turbolinks (~> 5)
   tzinfo-data
   uglifier (>= 1.3.0)
-  w3c_validators
+  w3c_validators (~> 1.3.6)
   wdm (>= 0.1.0)
   webdrivers
   webmock