diff --git a/NEWS b/NEWS
index f9e04a0fc5..bc3048aacc 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,29 @@
+Overview of Changes in GTK+ 3.22.21
+===================================
+
+* Bugs fixed:
+ 738893 ComboBox in appears-as-list mode: Finishing scroll with mouse causes...
+ 786613 Adwaita: provide a generic sidebar icon and label styling
+ 787172 EmojiChooser: Improve selection of section buttons
+ 787279 EmojiChooser: Hovered emoji become impossible to see in HighContrast...
+ 787280 HighContrast: Fix regression in vertical separator in titlebar headerbar
+ 787410 entry: fix memory leak
+
+* Translation updates:
+ Basque
+ Catalan
+ Croatian
+ Czech
+ Danish
+ Finnish
+ German
+ Polish
+ Slovenian
+ Spanish
+ Swedish
+ Turkish
+
+
 Overview of Changes in GTK+ 3.22.20
 ===================================
 
diff --git a/configure.ac b/configure.ac
index cbe5a2bff5..ec4e9a3028 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,8 +10,8 @@
 
 m4_define([gtk_major_version], [3])
 m4_define([gtk_minor_version], [22])
-m4_define([gtk_micro_version], [20])
-m4_define([gtk_interface_age], [20])
+m4_define([gtk_micro_version], [21])
+m4_define([gtk_interface_age], [21])
 m4_define([gtk_binary_age],
           [m4_eval(100 * gtk_minor_version + gtk_micro_version)])
 m4_define([gtk_version],