diff --git a/horizon.dhall b/horizon.dhall
index 60dd12232b1b8654c24a3db7b1a04614073525f1..fcaa622e48b89100bf9a869bdf6cf7258bec5b21 100644
--- a/horizon.dhall
+++ b/horizon.dhall
@@ -1053,11 +1053,7 @@ let packages =
             "https://github.com/locallycompact/tar"
             "107c0b78524acfd0e77e767b83073492008bea0c"
             (None Text)
-      , tasty =
-          H.callGit
-            "https://github.com/UnkindPartition/tasty"
-            "207d3453a64b414593512c1e968171d64a8dbe61"
-            (Some "core")
+      , tasty = H.callHackage "tasty" "1.4.3"
       , tasty-bench = H.callHackage "tasty-bench" "0.3.2"
       , tasty-discover = H.callHackage "tasty-discover" "5.0.0"
       , tasty-expected-failure = H.callHackage "tasty-expected-failure" "0.12.3"
diff --git a/pkgs/tasty.nix b/pkgs/tasty.nix
index 4141ce4a6206a2d67c641f4fc722d449852bad92..1d38a80a9c762b458c6d2257d928786dfe05e3a5 100644
--- a/pkgs/tasty.nix
+++ b/pkgs/tasty.nix
@@ -2,7 +2,6 @@
 , ansi-terminal
 , base
 , containers
-, fetchgit
 , lib
 , optparse-applicative
 , stm
@@ -12,14 +11,8 @@
 }:
 mkDerivation {
   pname = "tasty";
-  version = "1.4.2.3";
-  src = fetchgit {
-    url = "https://github.com/UnkindPartition/tasty";
-    sha256 = "0mbzw9plh5gffpdzbnw6749b45dpal29wdak2y04qlmjs42wxcv1";
-    rev = "207d3453a64b414593512c1e968171d64a8dbe61";
-    fetchSubmodules = true;
-  };
-  postUnpack = "sourceRoot+=/core/; echo source root reset to $sourceRoot";
+  version = "1.4.3";
+  sha256 = "f420da9560267271dce8a0007a1cb77c06987f0d129eb0f613110ce61f71cb00";
   isLibrary = true;
   isExecutable = false;
   enableSeparateDataOutput = false;