diff --git a/tests/docker-ocserv/ocserv-radius.conf b/tests/docker-ocserv/ocserv-radius.conf
index 5c577595..bfa1f1fc 100644
--- a/tests/docker-ocserv/ocserv-radius.conf
+++ b/tests/docker-ocserv/ocserv-radius.conf
@@ -223,7 +223,7 @@ ipv4-netmask = 255.255.255.0
 #nbns = 192.168.1.3
 
 # The IPv6 subnet that leases will be given from.
-ipv6-network = fd91:6d87:7341:dd6b::
+ipv6-network = fc13:71:ea31:4b4e::
 ipv6-prefix = 64
 
 # The domains over which the provided DNS should be used. Use
diff --git a/tests/full-test b/tests/full-test
index 8998e719..61c85c5a 100755
--- a/tests/full-test
+++ b/tests/full-test
@@ -103,7 +103,7 @@ if test $? != 0;then
 	stop
 fi
 
-ping6 -w 5 fd91:6d87:7341:db6a:0:52:190c:be01
+ping6 -w 5 fd91:6d87:7341:db6a:1950:2c2b:bd9d:6cef
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping the IPv6 of ocserv"
diff --git a/tests/pam-test b/tests/pam-test
index 7f64dc97..39721009 100755
--- a/tests/pam-test
+++ b/tests/pam-test
@@ -110,7 +110,7 @@ if test $? != 0;then
 	stop
 fi
 
-ping6 -w 5 fd91:6d87:7341:dc6b:0:6:173c:7901
+ping6 -w 5 fd91:6d87:7341:dc6b:fbd8:827b:1f6b:8f79
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping the IPv6 of ocserv"
diff --git a/tests/radius-test b/tests/radius-test
index 30eaa56a..c902fed7 100755
--- a/tests/radius-test
+++ b/tests/radius-test
@@ -95,7 +95,7 @@ if test $? != 0;then
 	stop
 fi
 
-ping6 -w 5 fd91:6d87:7341:dd6b:0:52:190c:be01
+ping6 -w 5 fc13:71:ea31:4b4e:1950:2c2b:bd9d:6cef
 if test $? != 0;then
 	kill $PID
 	echo "Cannot ping the IPv6 of ocserv"