diff --git a/pkgs/development/libraries/haskell/SafeSemaphore/default.nix b/pkgs/development/libraries/haskell/SafeSemaphore/default.nix
new file mode 100644
index 00000000000..ad161f97102
--- /dev/null
+++ b/pkgs/development/libraries/haskell/SafeSemaphore/default.nix
@@ -0,0 +1,14 @@
+{ cabal, stm }:
+
+cabal.mkDerivation (self: {
+  pname = "SafeSemaphore";
+  version = "0.9.0";
+  sha256 = "1xa30cciw8wmri675kdsz4pb5qwrh592pzylbhawqsvsarf80gz4";
+  buildDepends = [ stm ];
+  meta = {
+    homepage = "https://github.com/ChrisKuklewicz/SafeSemaphore";
+    description = "Much safer replacement for QSemN, QSem, and SampleVar";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 1765edafc99..078307b0266 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1440,6 +1440,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   safe = callPackage ../development/libraries/haskell/safe {};
 
+  SafeSemaphore = callPackage ../development/libraries/haskell/SafeSemaphore {};
+
   sendfile = callPackage ../development/libraries/haskell/sendfile {};
 
   semigroups = callPackage ../development/libraries/haskell/semigroups {};