diff --git a/core/src/main/resources/com/linecorp/armeria/public_suffixes.txt b/core/src/main/resources/com/linecorp/armeria/public_suffixes.txt
index cb3ab595317..1d803fbfff8 100644
--- a/core/src/main/resources/com/linecorp/armeria/public_suffixes.txt
+++ b/core/src/main/resources/com/linecorp/armeria/public_suffixes.txt
@@ -1557,6 +1557,7 @@ co.id
 co.il
 co.im
 co.in
+co.io
 co.ir
 co.it
 co.je
@@ -2231,6 +2232,7 @@ edu.hk
 edu.hn
 edu.ht
 edu.in
+edu.io
 edu.iq
 edu.is
 edu.it
@@ -3171,6 +3173,7 @@ gov.hk
 gov.ie
 gov.il
 gov.in
+gov.io
 gov.iq
 gov.ir
 gov.is
@@ -5045,7 +5048,6 @@ mckinsey
 mcpe.me
 mcpre.ru
 md
-md.ci
 md.us
 me
 me-south-1.elasticbeanstalk.com
@@ -5168,6 +5170,7 @@ mil.gt
 mil.hn
 mil.id
 mil.in
+mil.io
 mil.iq
 mil.jo
 mil.kg
@@ -5737,6 +5740,7 @@ net.id
 net.il
 net.im
 net.in
+net.io
 net.iq
 net.ir
 net.is
@@ -5958,6 +5962,7 @@ nom.ag
 nom.co
 nom.es
 nom.fr
+nom.io
 nom.km
 nom.mg
 nom.nc
@@ -6343,6 +6348,7 @@ org.hu
 org.il
 org.im
 org.in
+org.io
 org.iq
 org.ir
 org.is
@@ -6745,7 +6751,6 @@ press.aero
 press.cy
 press.ma
 press.se
-presse.ci
 presse.km
 presse.ml
 preview.csb.app