diff --git a/NEWS.md b/NEWS.md
index b95b9d1bb3..2ef33a42c3 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -36,12 +36,12 @@ The following default gems are updated.
 
 The following bundled gems are updated.
 
-* minitest 5.21.2
+* minitest 5.22.2
 * net-ftp 0.3.4
-* net-imap 0.4.9.1
+* net-imap 0.4.10
 * net-smtp 0.4.0.1
 * rbs 3.4.3
-* typeprof 0.21.9
+* typeprof 0.21.10
 * debug 1.9.1
 
 The following bundled gems are promoted from default gems.
diff --git a/gems/bundled_gems b/gems/bundled_gems
index c8951f7161..b914fbc084 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -5,14 +5,14 @@
 # - repository-url: URL from where clone for test
 # - revision: revision in repository-url to test
 #   if `revision` is not given, "v"+`version` or `version` will be used.
-minitest        5.21.2  https://github.com/minitest/minitest
+minitest        5.22.2  https://github.com/minitest/minitest
 power_assert    2.0.3   https://github.com/ruby/power_assert
 rake            13.1.0  https://github.com/ruby/rake
 test-unit       3.6.1   https://github.com/test-unit/test-unit
 rexml           3.2.6   https://github.com/ruby/rexml
 rss             0.3.0   https://github.com/ruby/rss
 net-ftp         0.3.4   https://github.com/ruby/net-ftp
-net-imap        0.4.9.1 https://github.com/ruby/net-imap
+net-imap        0.4.10  https://github.com/ruby/net-imap
 net-pop         0.1.2   https://github.com/ruby/net-pop
 net-smtp        0.4.0.1 https://github.com/ruby/net-smtp
 matrix          0.4.2   https://github.com/ruby/matrix