diff --git a/package.json b/package.json
index fad38b1a090..88ef0584a16 100644
--- a/package.json
+++ b/package.json
@@ -52,9 +52,9 @@
       "version": "0.1.0"
     },
     {
-      "hash": "QmU6FqHBr1W5ajRrj4cr2SfGq1w8gq2LpS42JWRysEb3BK",
+      "hash": "QmSXCTgRb3JhrV5ALbWocbNGD8Tc3HVHczFYvYKrSQAau3",
       "name": "iptb",
-      "version": "1.1.2"
+      "version": "1.1.4"
     },
     {
       "hash": "QmYDds3421prZgqKbLpEK7T9Aa2eVdQ7o3YarX1LVLdP2J",
diff --git a/test/sharness/t0130-multinode.sh b/test/sharness/t0130-multinode.sh
index e809d46ece4..478c33060a2 100755
--- a/test/sharness/t0130-multinode.sh
+++ b/test/sharness/t0130-multinode.sh
@@ -72,7 +72,7 @@ run_basic_test() {
 }
 
 run_advanced_test() {
-	startup_cluster 5
+	startup_cluster 5 "$@"
 
 	run_single_file_test
 
@@ -87,6 +87,13 @@ test_expect_success "set up tcp testbed" '
 	iptb init -n 5 -p 0 -f --bootstrap=none
 '
 
+# test multiplex muxer
+export LIBP2P_MUX_PREFS="/mplex/6.7.0"
+run_advanced_test --enable-mplex-experiment
+unset LIBP2P_MUX_PREFS
+
+# test default configuration
 run_advanced_test
 
+
 test_done