diff --git a/sf-buffer/src/sf_replay.cpp b/sf-buffer/src/sf_replay.cpp
index 0990e3a..4e3f7ba 100644
--- a/sf-buffer/src/sf_replay.cpp
+++ b/sf-buffer/src/sf_replay.cpp
@@ -49,7 +49,7 @@ int main (int argc, char *argv[]) {
     auto socket = zmq_socket(ctx, ZMQ_PUSH);
 
     //TODO: Use ipc?
-    if (zmq_connect(socket, "tcp://localhost:49000") != 0) {
+    if (zmq_connect(socket, "tcp://localhost:50000") != 0) {
         throw runtime_error(strerror (errno));
     }
 
diff --git a/sf-writer/sf_h5_writer.cpp b/sf-writer/sf_h5_writer.cpp
index 2fb727d..e0cbe59 100644
--- a/sf-writer/sf_h5_writer.cpp
+++ b/sf-writer/sf_h5_writer.cpp
@@ -36,7 +36,7 @@ int main (int argc, char *argv[])
     auto socket = zmq_socket(ctx, ZMQ_PULL);
 
     //TODO: Use ipc?
-    if (zmq_bind(socket, "tcp://127.0.0.1:49000") != 0) {
+    if (zmq_bind(socket, "tcp://127.0.0.1:50000") != 0) {
         throw runtime_error(strerror (errno));
     }