diff --git a/src/Russia-domains-inside.lst b/src/Russia-domains-inside.lst
index 9e1d55b..f8a798c 100644
--- a/src/Russia-domains-inside.lst
+++ b/src/Russia-domains-inside.lst
@@ -502,6 +502,13 @@ riotpixels.com
 threema.ch
 signal.org
 
+# SimpleX Chat
+simplex.chat
+simplex.im
+smp1.adminforge.de
+smp2.adminforge.de
+smp3.adminforge.de
+
 # Other
 saverudata.net
 mail-api.proton.me