diff --git a/theta-agent-linux-amd64 b/theta-agent-linux-amd64
index cb9c281..a53d1cb 100755
Binary files a/theta-agent-linux-amd64 and b/theta-agent-linux-amd64 differ
diff --git a/websocket.go b/websocket.go
index 2651ba8..feb36e2 100644
--- a/websocket.go
+++ b/websocket.go
@@ -139,7 +139,11 @@ func connectWebSocket(cm *ConfigManager, exec Executor) {
 
 func handleCommand(cm *ConfigManager, msg WSMessage, c MessageWriter, exec Executor) {
 	cfg := cm.Get()
-	log.Printf("Received command: %s", msg.Type)
+	// Don't log the server's fire-and-forget heartbeat ack — it arrives every
+	// 60s and is not a command to act on; logging it is pure per-minute noise.
+	if msg.Type != "heartbeat_ack" {
+		log.Printf("Received command: %s", msg.Type)
+	}
 
 	sendResponse := func(status string, message string) {
 		resp, _ := json.Marshal(map[string]string{"status": status, "message": message})
diff --git a/websocket_test.go b/websocket_test.go
index d55d597..9d4c2f1 100644
--- a/websocket_test.go
+++ b/websocket_test.go
@@ -51,6 +51,9 @@ func TestHandleCommand(t *testing.T) {
 		expectedCmd     []string
 		expectedFile    string
 		expectedFileCont string
+		// heartbeat_ack (and any fire-and-forget ack) must be silently ignored —
+		// no response message, no command, no log noise.
+		expectedNoResponse bool
 	}{
 		{
 			name: "config command success",
@@ -175,6 +178,16 @@ func TestHandleCommand(t *testing.T) {
 			expectedStatus: "error",
 			expectedCmd:    nil,
 		},
+		{
+			name: "heartbeat_ack is silently ignored",
+			cfg: &Config{
+				Capabilities: Capabilities{},
+			},
+			msg: WSMessage{
+				Type: "heartbeat_ack",
+			},
+			expectedNoResponse: true,
+		},
 		{
 			name: "unknown command",
 			cfg: &Config{
@@ -194,6 +207,16 @@ func TestHandleCommand(t *testing.T) {
 			cm := &ConfigManager{current: tc.cfg}
 			handleCommand(cm, tc.msg, mockConn, mockExec)
 
+			if tc.expectedNoResponse {
+				if len(mockConn.Messages) != 0 {
+					t.Fatalf("expected no response message, got %d: %v", len(mockConn.Messages), mockConn.Messages)
+				}
+				if len(mockExec.ExecutedCommands) > 0 {
+					t.Errorf("expected no commands to be executed, but got %v", mockExec.ExecutedCommands)
+				}
+				return
+			}
+
 			if len(mockConn.Messages) != 1 {
 				t.Fatalf("expected 1 response message, got %d", len(mockConn.Messages))
 			}