diff --git a/internal/dns/conf.go b/internal/dns/conf.go
index 3e8933fd..5a896878 100644
--- a/internal/dns/conf.go
+++ b/internal/dns/conf.go
@@ -60,7 +60,7 @@ func generateUnboundConf(settings settings.DNS, client network.Client, logger lo
 		"harden-algo-downgrade": "yes",
 		// Network
 		"do-ip4":    "yes",
-		"do-ip6":    "no",
+		"do-ip6":    "yes",
 		"interface": "127.0.0.1",
 		"port":      "53",
 		// Other
diff --git a/internal/dns/conf_test.go b/internal/dns/conf_test.go
index b1c73f46..90176ac3 100644
--- a/internal/dns/conf_test.go
+++ b/internal/dns/conf_test.go
@@ -43,7 +43,7 @@ server:
   cache-max-ttl: 9000
   cache-min-ttl: 3600
   do-ip4: yes
-  do-ip6: no
+  do-ip6: yes
   harden-algo-downgrade: yes
   harden-below-nxdomain: yes
   harden-referral-path: yes
diff --git a/internal/mullvad/conf.go b/internal/mullvad/conf.go
index a1b3b398..bdab1386 100644
--- a/internal/mullvad/conf.go
+++ b/internal/mullvad/conf.go
@@ -43,6 +43,7 @@ func (c *configurator) BuildConf(connections []models.OpenVPNConnection, verbosi
 		// "rcvbuf 524288"
 		"cipher AES-256-CBC",
 		"tls-cipher TLS-DHE-RSA-WITH-AES-256-GCM-SHA384:TLS-DHE-RSA-WITH-AES-256-CBC-SHA",
+		"tun-ipv6",
 
 		// Added constant values
 		"mute-replay-warnings",
diff --git a/internal/pia/conf.go b/internal/pia/conf.go
index f0807228..01c5c773 100644
--- a/internal/pia/conf.go
+++ b/internal/pia/conf.go
@@ -80,6 +80,7 @@ func (c *configurator) BuildConf(connections []models.OpenVPNConnection, encrypt
 		"reneg-sec 0",
 
 		// Added constant values
+		"tun-ipv6",
 		"mute-replay-warnings",
 		"user nonrootuser",
 		"pull-filter ignore \"auth-token\"", // prevent auth failed loops