diff --git a/manifest.dhall b/manifest.dhall
index 4ee0cbf7bb4ce8f81f990763d1e44826cc4457d9..998a6bc94e002848974609688c8066f8d619ce5c 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -106,6 +106,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "bimap" "0.5.0"
     , callHackage "bitvec" "1.1.3.0"
     , callHackage "binary-orphans" "1.0.3"
+    , callHackage "blaze-builder" "0.4.2.2"
     , callHackage "blaze-html" "0.9.1.2"
     , callHackage "blaze-textual" "0.2.2.1"
     , callHackage "blaze-markup" "0.8.2.8"
diff --git a/overlay.nix b/overlay.nix
index 0f0e0abae128b92905e95afa3aa9545de8ec89d7..2f5431e84b759448de9c132b61b1b6785db93f5a 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -95,6 +95,8 @@ self: with pkgs.haskell.lib; {
 
   bitvec = self.callPackage (./pkgs/bitvec.nix) { };
 
+  blaze-builder = self.callPackage (./pkgs/blaze-builder.nix) { };
+
   blaze-html = self.callPackage (./pkgs/blaze-html.nix) { };
 
   blaze-markup = self.callPackage (./pkgs/blaze-markup.nix) { };
diff --git a/pkgs/blaze-builder.nix b/pkgs/blaze-builder.nix
new file mode 100644
index 0000000000000000000000000000000000000000..da2e24e526e034d5e3c6dfcffaedde50545a5910
--- /dev/null
+++ b/pkgs/blaze-builder.nix
@@ -0,0 +1,47 @@
+{ mkDerivation
+, base
+, bytestring
+, deepseq
+, ghc-prim
+, HUnit
+, lib
+, QuickCheck
+, test-framework
+, test-framework-hunit
+, test-framework-quickcheck2
+, text
+, utf8-string
+}:
+mkDerivation {
+  pname = "blaze-builder";
+  version = "0.4.2.2";
+  sha256 = "2cdc998c021d3a5f2a66a95138b93386271c26a117e7676d78264a90e536af67";
+  revision = "1";
+  editedCabalFile = "026vxh94h2hwncy1mn51xzfpnhj8ijp5xc8fpq7dwc63fkrps0gh";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [ base bytestring deepseq ghc-prim text ];
+  testHaskellDepends = [
+    base
+    bytestring
+    HUnit
+    QuickCheck
+    test-framework
+    test-framework-hunit
+    test-framework-quickcheck2
+    text
+    utf8-string
+  ];
+  enableLibraryProfiling = false;
+  enableExecutableProfiling = false;
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/blaze-builder/blaze-builder";
+  description = "Efficient buffered output";
+  license = lib.licenses.bsd3;
+  broken = false;
+}