diff --git a/driver-core/src/main/com/mongodb/internal/connection/DefaultServerMonitor.java b/driver-core/src/main/com/mongodb/internal/connection/DefaultServerMonitor.java
index 4842a6c8a2..acceb92fa6 100644
--- a/driver-core/src/main/com/mongodb/internal/connection/DefaultServerMonitor.java
+++ b/driver-core/src/main/com/mongodb/internal/connection/DefaultServerMonitor.java
@@ -261,7 +261,7 @@ private ServerDescription lookupServerDescription(final ServerDescription curren
 
                 // Get existing connection
                 return doHeartbeat(currentServerDescription, shouldStreamResponses);
-            } catch (Throwable t) {
+            } catch (Exception t) {
                 roundTripTimeSampler.reset();
                 InternalConnection localConnection = withLock(lock, () -> {
                     InternalConnection result = connection;