diff --git a/src/components/editor/faultTree/shapes/RenderTree.tsx b/src/components/editor/faultTree/shapes/RenderTree.tsx
index fd6f37ac..4c4aeabf 100644
--- a/src/components/editor/faultTree/shapes/RenderTree.tsx
+++ b/src/components/editor/faultTree/shapes/RenderTree.tsx
@@ -81,6 +81,11 @@ const renderTree = async (container, node, parentShape = null, pathsToHighlight,
     }
   }
 
+  if (isReferencedNode(node) && node.supertypes?.hasFailureRate?.requirement?.upperBound) {
+    const probReqValue = node.supertypes.hasFailureRate.requirement.upperBound.toExponential(2);
+    nodeShape.attr(["probabilityRequirementLabel", "text"], probReqValue);
+  }
+
   if (has(node, "probabilityRequirement")) {
     nodeShape.attr(["probabilityRequirementLabel", "text"], node.probabilityRequirement.toExponential(2));
   }
diff --git a/src/components/editor/faultTree/shapes/shapesDefinitions.tsx b/src/components/editor/faultTree/shapes/shapesDefinitions.tsx
index c8d2efc8..13daaeb5 100644
--- a/src/components/editor/faultTree/shapes/shapesDefinitions.tsx
+++ b/src/components/editor/faultTree/shapes/shapesDefinitions.tsx
@@ -183,6 +183,10 @@ export const ExternalEvent = Event.define(
         },
         refY2: -20,
       },
+      probabilityRequirementLabel: {
+        fontSize: 16,
+        refX: "120%",
+      },
       gate: {
         d: "M -15 -16 L 0 -30 L 15 -16 L 15 0 L -15 0 Z M 0 -30 L 0 -59",
         stroke: STROKE_COLOR,