diff --git a/Gemfile.lock b/Gemfile.lock
index 55746c6c97..2c6ab6c04d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -191,7 +191,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.4)
+    concurrent-ruby (1.1.5)
     connection_pool (2.2.2)
     cookiejar (0.3.3)
     crack (0.4.3)
@@ -341,12 +341,12 @@ GEM
     mysql2 (0.5.2-x86-mingw32)
     nio4r (2.3.1)
     nio4r (2.3.1-java)
-    nokogiri (1.10.3)
+    nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.3-java)
-    nokogiri (1.10.3-x64-mingw32)
+    nokogiri (1.10.4-java)
+    nokogiri (1.10.4-x64-mingw32)
       mini_portile2 (~> 2.4.0)
-    nokogiri (1.10.3-x86-mingw32)
+    nokogiri (1.10.4-x86-mingw32)
       mini_portile2 (~> 2.4.0)
     os (1.0.0)
     parallel (1.17.0)
@@ -381,7 +381,7 @@ GEM
     rails-html-sanitizer (1.2.0)
       loofah (~> 2.2, >= 2.2.2)
     rainbow (3.0.0)
-    rake (12.3.2)
+    rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -427,17 +427,17 @@ GEM
     rufus-scheduler (3.6.0)
       fugit (~> 1.1, >= 1.1.6)
     safe_yaml (1.0.4)
-    sass (3.7.2)
-      sass-listen (~> 4.0.0)
-    sass-listen (4.0.0)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-    sass-rails (5.0.7)
-      railties (>= 4.0.0, < 6)
-      sass (~> 3.1)
-      sprockets (>= 2.8, < 4.0)
-      sprockets-rails (>= 2.0, < 4.0)
-      tilt (>= 1.1, < 3)
+    sass-rails (6.0.0)
+      sassc-rails (~> 2.1, >= 2.1.1)
+    sassc (2.0.1)
+      ffi (~> 1.9)
+      rake
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
     sdoc (1.0.0)
       rdoc (>= 5.0)
     selenium-webdriver (3.142.3)
@@ -525,7 +525,7 @@ GEM
     websocket-extensions (0.1.3)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.1.8)
+    zeitwerk (2.1.9)
 
 PLATFORMS
   java
diff --git a/railties/lib/rails/generators/app_base.rb b/railties/lib/rails/generators/app_base.rb
index ed0215bda9..b0cb0227ed 100644
--- a/railties/lib/rails/generators/app_base.rb
+++ b/railties/lib/rails/generators/app_base.rb
@@ -306,7 +306,7 @@ module Rails
       def assets_gemfile_entry
         return [] if options[:skip_sprockets]
 
-        GemfileEntry.version("sass-rails", ">= 5", "Use SCSS for stylesheets")
+        GemfileEntry.version("sass-rails", ">= 6", "Use SCSS for stylesheets")
       end
 
       def webpacker_gemfile_entry