diff --git a/manifest.dhall b/manifest.dhall
index d5b14dba9be189f90b22ede305af29a7b7ebf8a7..12475ca4a6dd83e0a15aa0053d5568bd336c6f86 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -346,6 +346,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "monad-time" "0.4.0.0"
     , callHackage "monad-par" "0.3.5"
     , callHackage "monoid-subclasses" "1.1.3"
+    , callHackage "mono-traversable" "1.0.15.3"
     , callHackage "network-byte-order" "0.1.6"
     , callHackage "network-uri" "2.6.4.1"
     , callHackage "newtype-generics" "0.6.2"
diff --git a/overlay.nix b/overlay.nix
index b655fb758f27297db3e1828a3792aec6558d5701..08f632b27ee06338d237ad811812015348689f7d 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -419,6 +419,8 @@ final: prev: with pkgs.haskell.lib; {
 
   monad-time = prev.callPackage (./pkgs/monad-time.nix) { };
 
+  mono-traversable = prev.callPackage (./pkgs/mono-traversable.nix) { };
+
   monoid-subclasses = prev.callPackage (./pkgs/monoid-subclasses.nix) { };
 
   net-mqtt = prev.callPackage (./pkgs/net-mqtt.nix) { };
diff --git a/pkgs/mono-traversable.nix b/pkgs/mono-traversable.nix
new file mode 100644
index 0000000000000000000000000000000000000000..ce8af799a3a01365a256806509d12dde0e726401
--- /dev/null
+++ b/pkgs/mono-traversable.nix
@@ -0,0 +1,64 @@
+{ mkDerivation
+, base
+, bytestring
+, containers
+, foldl
+, gauge
+, hashable
+, hspec
+, HUnit
+, lib
+, mwc-random
+, QuickCheck
+, split
+, text
+, transformers
+, unordered-containers
+, vector
+, vector-algorithms
+}:
+mkDerivation {
+  pname = "mono-traversable";
+  version = "1.0.15.3";
+  sha256 = "98b220f3313d74227a4249210c8818e839678343e62b3ebb1b8c867cf2b974b7";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [
+    base
+    bytestring
+    containers
+    hashable
+    split
+    text
+    transformers
+    unordered-containers
+    vector
+    vector-algorithms
+  ];
+  testHaskellDepends = [
+    base
+    bytestring
+    containers
+    foldl
+    hspec
+    HUnit
+    QuickCheck
+    text
+    transformers
+    unordered-containers
+    vector
+  ];
+  benchmarkHaskellDepends = [ base gauge mwc-random vector ];
+  enableLibraryProfiling = false;
+  enableExecutableProfiling = false;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/snoyberg/mono-traversable#readme";
+  description = "Type classes for mapping, folding, and traversing monomorphic containers";
+  license = lib.licenses.mit;
+  broken = false;
+}