diff --git a/pkgs/applications/science/logic/tamarin-prover/default.nix b/pkgs/applications/science/logic/tamarin-prover/default.nix
index a77f2dbac44..76dc559cb7a 100644
--- a/pkgs/applications/science/logic/tamarin-prover/default.nix
+++ b/pkgs/applications/science/logic/tamarin-prover/default.nix
@@ -4,12 +4,12 @@
 }:
 
 let
-  version = "1.6.0";
+  version = "1.6.1";
   src = fetchFromGitHub {
     owner  = "tamarin-prover";
     repo   = "tamarin-prover";
     rev    = version;
-    sha256 = "1pl3kz7gyw9g6s4x5j90z4snd10vq6296g3ajlr8d4n53p3c9i3w";
+    sha256 = "sha256:0cz1v7k4d0im749ag632nc34n91b51b0pq4z05rzw1p59a5lza92";
   };
 
   # tamarin has its own dependencies, but they're kept inside the repo,
@@ -85,15 +85,11 @@ mkDerivation (common "tamarin-prover" src // {
 
   executableHaskellDepends = (with haskellPackages; [
     binary-instances binary-orphans blaze-html conduit file-embed
-    gitrev http-types lifted-base monad-control monad-unlift
+    gitrev http-types lifted-base monad-control
     resourcet shakespeare threads wai warp yesod-core yesod-static
   ]) ++ [ tamarin-prover-utils
           tamarin-prover-sapic
           tamarin-prover-term
           tamarin-prover-theory
         ];
-
-  # tamarin-prover 1.6 is incompatible with maude 3.1.
-  hydraPlatforms = lib.platforms.none;
-  broken = true;
 })