diff --git a/src/main/java/com/sparrowwallet/sparrow/net/PublicElectrumServer.java b/src/main/java/com/sparrowwallet/sparrow/net/PublicElectrumServer.java
index 468ec242..f28d342a 100644
--- a/src/main/java/com/sparrowwallet/sparrow/net/PublicElectrumServer.java
+++ b/src/main/java/com/sparrowwallet/sparrow/net/PublicElectrumServer.java
@@ -18,7 +18,8 @@ public enum PublicElectrumServer {
     TESTNET_ARANGUREN_ORG("testnet.aranguren.org", "ssl://testnet.aranguren.org:51002", Network.TESTNET),
     TESTNET_QTORNADO_COM("testnet.qtornado.com", "ssl://testnet.qtornado.com:51002", Network.TESTNET),
     SIGNET_MEMPOOL_SPACE("mempool.space", "ssl://mempool.space:60602", Network.SIGNET),
-    TESTNET4_MEMPOOL_SPACE("mempool.space", "ssl://mempool.space:40002", Network.TESTNET4);
+    TESTNET4_MEMPOOL_SPACE("mempool.space", "ssl://mempool.space:40002", Network.TESTNET4),
+    TESTNET4_C3_SOFT("blackie.c3-soft.com", "ssl://blackie.c3-soft.com:57010", Network.TESTNET4);
 
     PublicElectrumServer(String name, String url, Network network) {
         this.server = new Server(url, name);