diff --git a/pkgs/games/empty-epsilon/default.nix b/pkgs/games/empty-epsilon/default.nix
index cb46b8d9ba27..6815041c96b4 100644
--- a/pkgs/games/empty-epsilon/default.nix
+++ b/pkgs/games/empty-epsilon/default.nix
@@ -3,8 +3,8 @@
 let
 
   major = "2019";
-  minor = "01";
-  patch = "19";
+  minor = "05";
+  patch = "21";
 
   version = "${major}.${minor}.${patch}";
 
@@ -16,7 +16,7 @@ let
       owner = "daid";
       repo = "SeriousProton";
       rev = "EE-${version}";
-      sha256 = "1a5g16vvjrykmdgy5fc8x0v4ipfm0qdaimmy5jz84am14dqi3f8w";
+      sha256 = "0q6in9rfs3b3qrfj2j6aj64z110k1yall4iqpp68rpp9r1dsh26p";
     };
 
     nativeBuildInputs = [ cmake ];
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
     owner = "daid";
     repo = "EmptyEpsilon";
     rev = "EE-${version}";
-    sha256 = "082v27w3n4jdm4a5884607rwsw4s00cnpqmh7bsdg9q3l29jpygn";
+    sha256 = "0v2xz1wlji6m6311r3vpkdil3a7l1w5nsz5yqd1l8bimy11rdr55";
   };
 
   nativeBuildInputs = [ cmake ];
@@ -60,7 +60,7 @@ stdenv.mkDerivation rec {
     description = "Open source bridge simulator based on Artemis";
     homepage = https://daid.github.io/EmptyEpsilon/;
     license = licenses.gpl2Plus;
-    maintainers = with maintainers; [ fpletz ];
+    maintainers = with maintainers; [ fpletz lheckemann ];
     platforms = platforms.linux;
   };
 }