diff --git a/eliot.nix b/eliot.nix
deleted file mode 100644
index 06698e39c5155052683e52f6e4f4a89edcf68f9f..0000000000000000000000000000000000000000
--- a/eliot.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-{ lib, buildPythonPackage, fetchPypi, zope_interface, pyrsistent, boltons
-, hypothesis, testtools, pytest }:
-buildPythonPackage rec {
-  pname = "eliot";
-  version = "1.7.0";
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "0ylyycf717s5qsrx8b9n6m38vyj2k8328lfhn8y6r31824991wv8";
-  };
-
-  postPatch = ''
-    substituteInPlace setup.py \
-      --replace "boltons >= 19.0.1" boltons
-    # depends on eliot.prettyprint._main which we don't have here.
-    rm eliot/tests/test_prettyprint.py
-  '';
-
-  checkInputs = [ testtools pytest hypothesis ];
-  propagatedBuildInputs = [ zope_interface pyrsistent boltons ];
-
-  # https://github.com/itamarst/eliot/issues/436
-  doCheck = false;
-
-  meta = with lib; {
-    homepage = https://github.com/itamarst/eliot/;
-    description = "Logging library that tells you why it happened";
-    license = licenses.asl20;
-  };
-}
diff --git a/overlays.nix b/overlays.nix
index ed2d8d1af449fcc410a0182b9d26e5b2a868e858..3d548fade895e7a390596fd56861d37ed753c5dc 100644
--- a/overlays.nix
+++ b/overlays.nix
@@ -15,12 +15,9 @@ self: super: {
       # 2 support.
       typing = python-self.callPackage ./typing.nix { };
 
-      # new tahoe-lafs dependency
-      eliot = python-self.callPackage ./eliot.nix { };
-
       # tahoe-lafs in nixpkgs is packaged as an application!  so we have to
       # re-package it ourselves as a library.
-      tahoe-lafs = python-self.callPackage ((import ./tahoe-lafs.nix) + "/nix") { };
+      tahoe-lafs = python-self.callPackage ./tahoe-lafs.nix { };
 
       # we depend on the challenge-bypass-ristretto python package, a set of
       # bindings to the challenge-bypass-ristretto Rust crate.
diff --git a/tahoe-lafs-repo.nix b/tahoe-lafs-repo.nix
new file mode 100644
index 0000000000000000000000000000000000000000..fc944e5739e7246a922761b2c7abaf05b62b8327
--- /dev/null
+++ b/tahoe-lafs-repo.nix
@@ -0,0 +1,9 @@
+let
+  pkgs = import <nixpkgs> {};
+in
+  pkgs.fetchFromGitHub {
+    owner = "tahoe-lafs";
+    repo = "tahoe-lafs";
+    rev = "tahoe-lafs-1.14.0";
+    sha256 = "1ahdiapg57g6icv7p2wbzgkwl9lzdlgrsvbm5485414m7z2d6las";
+  }
diff --git a/tahoe-lafs.nix b/tahoe-lafs.nix
index c305267b8914012921a9896a2e42ef2560f42a38..609015159af1a86d63c6802d60cfd111ccf62f84 100644
--- a/tahoe-lafs.nix
+++ b/tahoe-lafs.nix
@@ -1,9 +1,20 @@
+{ python2Packages }:
 let
-  pkgs = import <nixpkgs> {};
+  # Manually assemble the tahoe-lafs build inputs because tahoe-lafs 1.14.0
+  # eliot package runs the eliot test suite which is flaky.  Doing this gives
+  # us a place to insert a `doCheck = false` (at the cost of essentially
+  # duplicating tahoe-lafs' default.nix).  Not ideal but at least we can throw
+  # it away when we upgrade to the next tahoe-lafs version.
+  repo = ((import ./tahoe-lafs-repo.nix) + "/nix");
+  nevow-drv = repo + "/nevow.nix";
+  nevow = python2Packages.callPackage nevow-drv { };
+  eliot-drv = repo + "/eliot.nix";
+  eliot = (python2Packages.callPackage eliot-drv { }).overrideAttrs (old: {
+    doCheck = false;
+  });
+  tahoe-lafs-drv = repo + "/tahoe-lafs.nix";
+  tahoe-lafs = python2Packages.callPackage tahoe-lafs-drv {
+    inherit nevow eliot;
+  };
 in
-  pkgs.fetchFromGitHub {
-    owner = "tahoe-lafs";
-    repo = "tahoe-lafs";
-    rev = "34aeefd3ddbf28dafbc3477e52461eafa53b545d";
-    sha256 = "0l8n4njbzgiwmn3qsmvzyzqlb0y9bj9g2jvpdynvsn1ggxrqmvsq";
-  }
\ No newline at end of file
+  tahoe-lafs
diff --git a/zkapauthorizer.nix b/zkapauthorizer.nix
index a5e611b4c8879f65aa12c63c968de225a96834ac..a718487de5a73e6710982f1a449fd666c47206e0 100644
--- a/zkapauthorizer.nix
+++ b/zkapauthorizer.nix
@@ -1,6 +1,6 @@
 { lib
 , buildPythonPackage, sphinx, git
-, attrs, zope_interface, eliot, aniso8601, twisted, tahoe-lafs, challenge-bypass-ristretto, treq
+, attrs, zope_interface, aniso8601, twisted, tahoe-lafs, challenge-bypass-ristretto, treq
 , fixtures, testtools, hypothesis, pyflakes, coverage
 , hypothesisProfile ? null
 , collectCoverage ? false
@@ -31,7 +31,8 @@ buildPythonPackage rec {
     attrs
     zope_interface
     aniso8601
-    eliot
+    # Inherit eliot from tahoe-lafs
+    # eliot
     twisted
     tahoe-lafs
     challenge-bypass-ristretto