diff --git a/project/CopyrightHeader.scala b/project/CopyrightHeader.scala
index 844bc844f3..6338c52287 100644
--- a/project/CopyrightHeader.scala
+++ b/project/CopyrightHeader.scala
@@ -47,7 +47,9 @@ trait CopyrightHeader extends AutoPlugin {
     }
   )
 
-  val CurrentYear = java.time.Year.now.getValue.toString
+  // We hard-code this so PR's created in year X will not suddenly fail in X+1.
+  // Of course we should remember to update it early in the year.
+  val CurrentYear = "2019"
   val CopyrightPattern = "Copyright \\([Cc]\\) (\\d{4}([-–]\\d{4})?) (Lightbend|Typesafe) Inc. <.*>".r
   val CopyrightHeaderPattern = s"(?s).*${CopyrightPattern}.*".r