diff --git a/src/revpi_middleware/daemon.py b/src/revpi_middleware/daemon.py
index 202090b..06e3dc8 100644
--- a/src/revpi_middleware/daemon.py
+++ b/src/revpi_middleware/daemon.py
@@ -129,6 +129,17 @@ class MiddlewareDaemon:
                 self._reconfigure = False
                 pi.startup_complete()
 
+            # Monitor bus providers for errors and restart them
+            restart = False
+            if not (self.bp_middleware1 and self.bp_middleware1.is_alive()):
+                log.warning("dbus middleware1 provider thread is not alive - restarting")
+                restart = True
+            if not (self.bp_ios1 and self.bp_ios1.is_alive()):
+                log.warning("dbus ios1 provider thread is not alive - restarting")
+                restart = True
+            if restart:
+                self.dbus_start()
+
             # Cycle time calculation
             dm = divmod(ot - perf_counter(), self._cycle_time)
             # For float the result is (q, a % b), where q is usually math.floor(a / b) but may be 1 less than that.