diff --git a/Library/Homebrew/cmd/vendor-install.sh b/Library/Homebrew/cmd/vendor-install.sh
index 2c06f41db3..c6a599080a 100644
--- a/Library/Homebrew/cmd/vendor-install.sh
+++ b/Library/Homebrew/cmd/vendor-install.sh
@@ -13,22 +13,17 @@ if [[ -n "$HOMEBREW_MACOS" ]]
 then
   if [[ "$HOMEBREW_PROCESSOR" = "Intel" ]]
   then
-    ruby_URL="$HOMEBREW_BOTTLE_DOMAIN/bottles-portable-ruby/portable-ruby-2.3.3_2.leopard_64.bottle.tar.gz"
-    ruby_URL2="https://github.com/Homebrew/homebrew-portable-ruby/releases/download/2.3.3_2/portable-ruby-2.3.3_2.leopard_64.bottle.tar.gz"
-    ruby_SHA="f1db8863543d256e6a8e704bf618025030b3d22a7a6b19749d19f599b5554212"
+    ruby_URL="$HOMEBREW_BOTTLE_DOMAIN/bottles-portable-ruby/portable-ruby-2.3.7.leopard_64.bottle.tar.gz"
+    ruby_URL2="https://github.com/Homebrew/homebrew-portable-ruby/releases/download/2.3.7/portable-ruby-2.3.7.leopard_64.bottle.tar.gz"
+    ruby_SHA="033ac518bb14abdb1bb47d968dc9e967c3ae2035499383a21a79b49d523065d1"
   fi
 elif [[ -n "$HOMEBREW_LINUX" ]]
 then
   case "$HOMEBREW_PROCESSOR" in
     x86_64)
-      ruby_URL="$HOMEBREW_BOTTLE_DOMAIN/bottles-portable-ruby/portable-ruby-2.3.3_2.x86_64_linux.bottle.tar.gz"
-      ruby_URL2="https://github.com/Homebrew/homebrew-portable-ruby/releases/download/2.3.3_2/portable-ruby-2.3.3_2.x86_64_linux.bottle.tar.gz"
-      ruby_SHA="b5c320c1bc2c4d42d4674643855c582ba2772fc951689d298ee079b74bac29a7"
-      ;;
-    armv[67]*)
-      ruby_URL="$HOMEBREW_BOTTLE_DOMAIN/bottles-portable-ruby/portable-ruby-2.3.3_2.armv6_linux.bottle.tar.gz"
-      ruby_URL2="https://github.com/Homebrew/homebrew-portable-ruby/releases/download/2.3.3_2/portable-ruby-2.3.3_2.armv6_linux.bottle.tar.gz"
-      ruby_SHA="6ac992c4620912b50b3c74f2d4447d541bac4f1839e557c3edcfdebb141c9802"
+      ruby_URL="$HOMEBREW_BOTTLE_DOMAIN/bottles-portable-ruby/portable-ruby-2.3.7.x86_64_linux.bottle.tar.gz"
+      ruby_URL2="https://github.com/Homebrew/homebrew-portable-ruby/releases/download/2.3.7/portable-ruby-2.3.7.x86_64_linux.bottle.tar.gz"
+      ruby_SHA="9df214085a0e566a580eea3dd9eab14a2a94930ff74fbf97fb1284e905c8921d"
       ;;
   esac
 fi
diff --git a/Library/Homebrew/extend/os/mac/diagnostic.rb b/Library/Homebrew/extend/os/mac/diagnostic.rb
index 67027f4d57..3919536877 100644
--- a/Library/Homebrew/extend/os/mac/diagnostic.rb
+++ b/Library/Homebrew/extend/os/mac/diagnostic.rb
@@ -165,7 +165,7 @@ module Homebrew
       end
 
       def check_ruby_version
-        ruby_version = "2.3.3"
+        ruby_version = "2.3.7"
         return if RUBY_VERSION == ruby_version
         return if ARGV.homebrew_developer? && OS::Mac.prerelease?
 
diff --git a/Library/Homebrew/utils/ruby.sh b/Library/Homebrew/utils/ruby.sh
index e242cd6514..91b30efe15 100644
--- a/Library/Homebrew/utils/ruby.sh
+++ b/Library/Homebrew/utils/ruby.sh
@@ -3,7 +3,7 @@ setup-ruby-path() {
   local vendor_ruby_current_version
   local vendor_ruby_path
   local ruby_version_new_enough
-  local minimum_ruby_version="2.3.3"
+  local minimum_ruby_version="2.3.7"
 
   vendor_dir="$HOMEBREW_LIBRARY/Homebrew/vendor"
   vendor_ruby_current_version="$vendor_dir/portable-ruby/current"
diff --git a/Library/Homebrew/vendor/portable-ruby-version b/Library/Homebrew/vendor/portable-ruby-version
index 16376738e2..00355e29d1 100644
--- a/Library/Homebrew/vendor/portable-ruby-version
+++ b/Library/Homebrew/vendor/portable-ruby-version
@@ -1 +1 @@
-2.3.3_2
+2.3.7