diff --git a/NEWS.md b/NEWS.md
index b09eadeb055137..8125a5c46b181a 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -69,7 +69,7 @@ releases.
 * minitest 6.0.1
 * test-unit 3.7.7
 * rss 0.3.2
-* net-imap 0.6.2
+* net-imap 0.6.3
 * rbs 3.10.3
 * typeprof 0.31.1
 * debug 1.11.1
diff --git a/gems/bundled_gems b/gems/bundled_gems
index 6d79be7a974caf..6a0f626de9c99f 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -12,7 +12,7 @@ rake                13.3.1  https://github.com/ruby/rake
 test-unit           3.7.7   https://github.com/test-unit/test-unit
 rexml               3.4.4   https://github.com/ruby/rexml
 rss                 0.3.2   https://github.com/ruby/rss
-net-imap            0.6.2   https://github.com/ruby/net-imap            d9ae35ef913a45f83387b8444cdce4fb1cbf01af
+net-imap            0.6.3   https://github.com/ruby/net-imap
 net-smtp            0.5.1   https://github.com/ruby/net-smtp
 matrix              0.4.3   https://github.com/ruby/matrix
 prime               0.1.4   https://github.com/ruby/prime