diff --git a/include/sta/Sta.hh b/include/sta/Sta.hh
index bded0b9a..da5da08b 100644
--- a/include/sta/Sta.hh
+++ b/include/sta/Sta.hh
@@ -1513,6 +1513,7 @@ protected:
                                   bool infer_latches);
   void delayCalcPreamble();
   void delaysInvalidFrom(const Port *port);
+  void delaysInvalidFromFanin(const Port *port);
   void deleteEdge(Edge *edge);
   void netParasiticCaps(Net *net,
                         const RiseFall *rf,
diff --git a/search/Sta.cc b/search/Sta.cc
index 435b8867..61f9a274 100644
--- a/search/Sta.cc
+++ b/search/Sta.cc
@@ -3967,7 +3967,7 @@ Sta::setPortExtPinCap(const Port *port,
     for (const MinMax *mm : min_max->range())
       sdc->setPortExtPinCap(port, rf1, mm, cap);
   }
-  delaysInvalidFrom(port);
+  delaysInvalidFromFanin(port);
 }
 
 void
@@ -4022,7 +4022,7 @@ Sta::setPortExtWireCap(const Port *port,
     for (const MinMax *mm : min_max->range())
       sdc->setPortExtWireCap(port, rf1, mm, cap);
   }
-  delaysInvalidFrom(port);
+  delaysInvalidFromFanin(port);
 }
 
 void
@@ -4040,7 +4040,7 @@ Sta::setPortExtFanout(const Port *port,
 {
   for (const MinMax *mm : min_max->range())
     sdc->setPortExtFanout(port, mm, fanout);
-  delaysInvalidFrom(port);
+  delaysInvalidFromFanin(port);
 }
 
 void
@@ -5025,6 +5025,20 @@ Sta::delaysInvalidFrom(Vertex *vertex)
   graph_delay_calc_->delayInvalid(vertex);
 }
 
+void
+Sta::delaysInvalidFromFanin(const Port *port)
+{
+  if (graph_) {
+    Instance *top_inst = network_->topInstance();
+    Pin *pin = network_->findPin(top_inst, port);
+    Vertex *vertex, *bidirect_drvr_vertex;
+    graph_->pinVertices(pin, vertex, bidirect_drvr_vertex);
+    delaysInvalidFromFanin(vertex);
+    if (bidirect_drvr_vertex)
+      delaysInvalidFromFanin(bidirect_drvr_vertex);
+  }
+}
+
 void
 Sta::delaysInvalidFromFanin(const Pin *pin)
 {