diff --git a/project/MiMa.scala b/project/MiMa.scala
index 57c81203a0..77150482d5 100644
--- a/project/MiMa.scala
+++ b/project/MiMa.scala
@@ -11,8 +11,8 @@ import com.typesafe.tools.mima.plugin.MimaPlugin.autoImport._
 
 object MiMa extends AutoPlugin {
 
-  private val latestMinorOf25 = 11
-  private val latestMinorOf24 = 20
+  private val latestPatchOf25 = 12
+  private val latestPatchOf24 = 20
 
   override def requires = MimaPlugin
   override def trigger = allRequirements
@@ -23,10 +23,10 @@ object MiMa extends AutoPlugin {
   def akkaPreviousArtifacts(projectName: String, organization: String, scalaBinaryVersion: String): Set[sbt.ModuleID] = {
     val versions: Seq[String] = {
       val akka24NoStreamVersions = Seq("2.4.0", "2.4.1")
-      val akka25Versions = (0 to latestMinorOf25).map(patch ⇒ s"2.5.$patch")
+      val akka25Versions = (0 to latestPatchOf25).map(patch ⇒ s"2.5.$patch")
       val akka24StreamVersions = (2 to 12) map ("2.4." + _)
       val akka24WithScala212 =
-        (13 to latestMinorOf24)
+        (13 to latestPatchOf24)
           .map("2.4." + _)
           .filterNot(_ == "2.4.15") // 2.4.15 was released from the wrong branch and never announced