diff --git a/test-network-k8s/network b/test-network-k8s/network
index e1a98bb5..f4d1d8d6 100755
--- a/test-network-k8s/network
+++ b/test-network-k8s/network
@@ -21,7 +21,7 @@ set -o errexit
 # todo: refactor query/invoke to specify chaincode name (-n param)
 
 CONTAINER_CLI=${CONTAINER_CLI:-docker}
-FABRIC_VERSION=${TEST_NETWORK_FABRIC_VERSION:-2.4.1}
+FABRIC_VERSION=${TEST_NETWORK_FABRIC_VERSION:-2.4.3}
 FABRIC_CA_VERSION=${TEST_NETWORK_FABRIC_CA_VERSION:-1.5.2}
 FABRIC_CONTAINER_REGISTRY=${TEST_NETWORK_FABRIC_CONTAINER_REGISTRY:-hyperledger}
 NETWORK_NAME=${TEST_NETWORK_NAME:-test-network}