diff --git a/akka-actor/src/main/resources/reference.conf b/akka-actor/src/main/resources/reference.conf
index efbaff0afc..94efc34176 100644
--- a/akka-actor/src/main/resources/reference.conf
+++ b/akka-actor/src/main/resources/reference.conf
@@ -165,7 +165,7 @@ akka {
       keep-alive-time = 60s
 
       # minimum number of threads to cap factor-based core number to
-      core-pool-size-min = 6
+      core-pool-size-min = 8
 
       # No of core threads ... ceil(available processors * factor)
       core-pool-size-factor = 3.0
@@ -175,7 +175,7 @@ akka {
 
       # Hint: max-pool-size is only used for bounded task queues
       # minimum number of threads to cap factor-based max number to
-      max-pool-size-min = 6
+      max-pool-size-min = 8
 
       # Max no of threads ... ceil(available processors * factor)
       max-pool-size-factor  = 3.0
diff --git a/akka-testkit/src/test/scala/akka/testkit/AkkaSpec.scala b/akka-testkit/src/test/scala/akka/testkit/AkkaSpec.scala
index 7fb0307fe8..c7278eac55 100644
--- a/akka-testkit/src/test/scala/akka/testkit/AkkaSpec.scala
+++ b/akka-testkit/src/test/scala/akka/testkit/AkkaSpec.scala
@@ -29,10 +29,10 @@ object AkkaSpec {
         actor {
           default-dispatcher {
             core-pool-size-factor = 2
-            core-pool-size-min = 4
+            core-pool-size-min = 8
             core-pool-size-max = 8
             max-pool-size-factor = 2
-            max-pool-size-min = 4
+            max-pool-size-min = 8
             max-pool-size-max = 8
           }
         }