diff --git a/contrib/unaccent/unaccent.rules b/contrib/unaccent/unaccent.rules
index 76e4e69..7ce25ee 100644
--- a/contrib/unaccent/unaccent.rules
+++ b/contrib/unaccent/unaccent.rules
@@ -399,6 +399,21 @@
 ʦ	ts
 ʪ	ls
 ʫ	lz
+ʹ	'
+ʺ	"
+ʻ	'
+ʼ	'
+ʽ	'
+˂	<
+˃	>
+˄	^
+ˆ	^
+ˈ	'
+ˋ	`
+ː	:
+˖	+
+˗	-
+˜	~
 Ά	Α
 Έ	Ε
 Ή	Η