diff --git a/VERSION b/VERSION
index a9184766..9291fe6e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.43.0
+3.43.1
diff --git a/as-ap-sofb/as_ap_sofb/as_ap_sofb.py b/as-ap-sofb/as_ap_sofb/as_ap_sofb.py
index d2105ada..a2439596 100755
--- a/as-ap-sofb/as_ap_sofb/as_ap_sofb.py
+++ b/as-ap-sofb/as_ap_sofb/as_ap_sofb.py
@@ -50,7 +50,8 @@ def read(self, reason):
     def write(self, reason, value):
         if not self._isValid(reason, value):
             return False
-        self._write_queue.put(self._write, (reason, value))
+        self._write_queue.put(
+            (self._write, (reason, value)), block=False)
         return True
 
     def _write(self, reason, value):
diff --git a/as-ti-control/as_ti_control/as_ti_control.py b/as-ti-control/as_ti_control/as_ti_control.py
index f610cee7..98cf1050 100644
--- a/as-ti-control/as_ti_control/as_ti_control.py
+++ b/as-ti-control/as_ti_control/as_ti_control.py
@@ -81,7 +81,8 @@ def read(self, reason):
     def write(self, reason, value):
         if not self._isValid(reason, value):
             return False
-        self._write_queue.put(self._write, (reason, value))
+        self._write_queue.put(
+            (self._write, (reason, value)), block=False)
         return True
 
     def _write(self, reason, value):