diff --git a/profiles/package.mask b/profiles/package.mask
index 5efecd29d246d..0b60ec9a54fbf 100644
--- a/profiles/package.mask
+++ b/profiles/package.mask
@@ -32,6 +32,11 @@
 
 #--- END OF EXAMPLES ---
 
+# Michał Górny <mgorny@gentoo.org> (2021-04-22)
+# py3.7 backport with no revdeps left.
+# Removal on 2021-05-22.  Bug #784983.
+dev-python/idna-ssl
+
 # Miroslav Šulc <fordfrog@gentoo.org> (2021-04-21)
 # no consumers, last commit 2017
 # see: https://bugs.gentoo.org/784836