diff --git a/pkgs/tools/security/hologram/default.nix b/pkgs/tools/security/hologram/default.nix
index c4e90bd94bb..ebb88437826 100644
--- a/pkgs/tools/security/hologram/default.nix
+++ b/pkgs/tools/security/hologram/default.nix
@@ -2,13 +2,12 @@
 
 buildGoPackage rec {
   pname = "hologram";
-  version = "2018-03-19";
-  rev = "a7bab58642b530edb75b9cf6c1d834c85822ceac";
+  version = "unstable-2018-03-19";
 
   src = fetchFromGitHub {
     owner = "AdRoll";
     repo = "hologram";
-    inherit rev;
+    rev = "a7bab58642b530edb75b9cf6c1d834c85822ceac";
     sha256 = "00scryz8js6gbw8lp2y23qikbazz2dd992r97rqh0l1q4baa0ckn";
   };