diff --git a/MozillaThunderbird.changes b/MozillaThunderbird.changes
index 8907071..de6ce9f 100644
--- a/MozillaThunderbird.changes
+++ b/MozillaThunderbird.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Apr 12 07:30:18 UTC 2022 - Martin Liška <mliska@suse.cz>
+
+- Set memory limits for DWZ to 4x.
+
 -------------------------------------------------------------------
 Thu Mar 17 14:39:51 UTC 2022 - Dirk Müller <dmueller@suse.com>
 
diff --git a/MozillaThunderbird.spec b/MozillaThunderbird.spec
index 39a765c..8a6a988 100644
--- a/MozillaThunderbird.spec
+++ b/MozillaThunderbird.spec
@@ -17,6 +17,9 @@
 #
 
 
+%define _dwz_low_mem_die_limit  40000000
+%define _dwz_max_die_limit     200000000
+
 # changed with every update
 # orig_version vs. mainver: To have beta-builds
 # FF70beta3 would be released as FF69.99