diff --git a/common-sw.nix b/common-sw.nix
index c475117..1f15661 100644
--- a/common-sw.nix
+++ b/common-sw.nix
@@ -4,7 +4,7 @@
   environment.systemPackages = with pkgs.haskellPackages; with pkgs; [
     gmpc
     m4
-    (pkgs.openjdk11 or pkgs.openjdk10 or openjdk8)
+    (pkgs.openjdk12 or pkgs.openjdk11 or pkgs.openjdk10 or openjdk8)
     sbt scala
     chromium
     firefox