diff --git a/website/Gemfile b/website/Gemfile
index af60e753004..19442037e2b 100644
--- a/website/Gemfile
+++ b/website/Gemfile
@@ -15,4 +15,4 @@ gem 'octokit'
 # (but jekyll-assets 4.x does)
 # https://github.com/envygeeks/jekyll-assets/issues/622
 gem 'jekyll-assets', '~>3'
-gem 'sprockets', '<4'
+gem 'sprockets', '>= 3.7.3', '< 4'
diff --git a/website/Gemfile.lock b/website/Gemfile.lock
index e048fdad60b..a0b2a0d0690 100644
--- a/website/Gemfile.lock
+++ b/website/Gemfile.lock
@@ -22,9 +22,10 @@ GEM
     babel-transpiler (0.7.0)
       babel-source (>= 4.0, < 6)
       execjs (~> 2.0)
+    base64 (0.2.0)
     colorator (1.1.0)
     colored (1.2)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.2.3)
     configure-s3-website (2.3.0)
       aws-sdk (~> 2)
       deep_merge (~> 1.0.0)
@@ -115,7 +116,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.5)
-    rack (2.2.3)
+    rack (2.2.9)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -140,7 +141,8 @@ GEM
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
-    sprockets (3.7.2)
+    sprockets (3.7.3)
+      base64
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-es6 (0.9.2)
@@ -167,11 +169,11 @@ DEPENDENCIES
   octokit
   rouge (< 2)
   s3_website (~> 3.4.0)
-  sprockets (< 4)
+  sprockets (>= 3.7.3, < 4)
   sprockets-es6
 
 RUBY VERSION
    ruby 2.6.6p146
 
 BUNDLED WITH
-   2.1.4
+   1.17.3