diff --git a/engine/language-server/src/main/resources/application.conf b/engine/language-server/src/main/resources/application.conf
index cc2f531d0ec4..04f31949f224 100644
--- a/engine/language-server/src/main/resources/application.conf
+++ b/engine/language-server/src/main/resources/application.conf
@@ -1,7 +1,15 @@
-akka.actor.debug.lifecycle = on
-akka.http.server.idle-timeout = infinite
-akka.http.server.remote-address-header = on
-akka.http.server.websocket.periodic-keep-alive-max-idle = 1 second
+akka {
+  actor.debug.lifecycle = on
+  http {
+      server {
+          server.idle-timeout = infinite
+          server.remote-address-header = on
+          server.websocket.periodic-keep-alive-max-idle = 1 second
+      }
+  }
+  log-dead-letters = 1
+  log-dead-letters-during-shutdown = off
+}
 
 logging-service.logger {
   akka.actor = info
diff --git a/lib/scala/project-manager/src/main/resources/application.conf b/lib/scala/project-manager/src/main/resources/application.conf
index 99d76690be02..e0c3fabf0d46 100644
--- a/lib/scala/project-manager/src/main/resources/application.conf
+++ b/lib/scala/project-manager/src/main/resources/application.conf
@@ -1,7 +1,15 @@
-akka.actor.debug.lifecycle = on
-akka.http.server.idle-timeout = infinite
-akka.http.server.remote-address-header = on
-akka.http.server.websocket.periodic-keep-alive-max-idle = 1 second
+akka {
+  actor.debug.lifecycle = on
+  http {
+      server {
+          server.idle-timeout = infinite
+          server.remote-address-header = on
+          server.websocket.periodic-keep-alive-max-idle = 1 second
+      }
+  }
+  log-dead-letters = 1
+  log-dead-letters-during-shutdown = off
+}
 
 logging-service.logger {
   akka.actor = info