diff --git a/nixos/modules/services/web-apps/plausible.nix b/nixos/modules/services/web-apps/plausible.nix
index 7a6756d6fb2..caf5ba466df 100644
--- a/nixos/modules/services/web-apps/plausible.nix
+++ b/nixos/modules/services/web-apps/plausible.nix
@@ -190,7 +190,7 @@ in {
           environment = {
             # NixOS specific option to avoid that it's trying to write into its store-path.
             # See also https://github.com/lau/tzdata#data-directory-and-releases
-            PLAUSIBLE_TZDATA = "/var/lib/plausible/elixir_tzdata";
+            TZDATA_DIR = "/var/lib/plausible/elixir_tzdata";
 
             # Configuration options from
             # https://plausible.io/docs/self-hosting-configuration
diff --git a/nixos/tests/plausible.nix b/nixos/tests/plausible.nix
index eb14bf5f491..45e11f0270e 100644
--- a/nixos/tests/plausible.nix
+++ b/nixos/tests/plausible.nix
@@ -1,6 +1,6 @@
 import ./make-test-python.nix ({ pkgs, lib, ... }: {
   name = "plausible";
-  meta = with pkgs.stdenv.lib.maintainers; {
+  meta = with lib.maintainers; {
     maintainers = [ ma27 ];
   };
 
diff --git a/pkgs/servers/web-apps/plausible/default.nix b/pkgs/servers/web-apps/plausible/default.nix
index 1fb37dc7ee0..c1cafb49d6a 100644
--- a/pkgs/servers/web-apps/plausible/default.nix
+++ b/pkgs/servers/web-apps/plausible/default.nix
@@ -1,5 +1,13 @@
-{ lib, stdenv, beamPackages, fetchFromGitHub, glibcLocales, cacert
-, mkYarnModules, nodejs, fetchpatch, nixosTests
+{ lib
+, stdenv
+, beamPackages
+, fetchFromGitHub
+, glibcLocales
+, cacert
+, mkYarnModules
+, nodejs
+, fetchpatch
+, nixosTests
 }:
 
 let
@@ -37,7 +45,8 @@ let
       echo 'module.exports = {}' > $out/node_modules/flatpickr/dist/postcss.config.js
     '';
   };
-in beamPackages.mixRelease {
+in
+beamPackages.mixRelease {
   inherit pname version src mixFodDeps;
 
   nativeBuildInputs = [ nodejs ];
@@ -50,6 +59,10 @@ in beamPackages.mixRelease {
       sha256 = "sha256-JvJ7xlGw+tHtWje+jiQChVC4KTyqqdq2q+MIcOv/k1o=";
     })
 
+    # Ensure that `tzdata` doesn't write into its store-path
+    # https://github.com/plausible/analytics/pull/1096, but rebased onto 1.3.0
+    ./tzdata-rebased.patch
+
     # CREATE EXTENSION requires super-user privileges. To avoid that, we just skip
     # the responsible SQL statement here and take care of it in the module.
     ./skip-create-ext.patch
@@ -60,25 +73,13 @@ in beamPackages.mixRelease {
     updateScript = ./update.sh;
   };
 
-  postPatch = ''
-    # Without this modification, tzdata tries to write in its store-path:
-    # https://github.com/lau/tzdata#data-directory-and-releases
-    echo 'config :tzdata, :data_dir, (System.get_env("PLAUSIBLE_TZDATA") || "/tmp/plausible_tzdata")' \
-      >> config/config.exs
-  '';
-
-  buildPhase = ''
-    runHook preBuild
-
-    mkdir -p $out
+  postBuild = ''
     ln -sf ${yarnDeps}/node_modules assets/node_modules
     npm run deploy --prefix ./assets
 
     # for external task you need a workaround for the no deps check flag
     # https://github.com/phoenixframework/phoenix/issues/2690
     mix do deps.loadpaths --no-deps-check, phx.digest
-
-    runHook postBuild
   '';
 
   meta = with lib; {
diff --git a/pkgs/servers/web-apps/plausible/tzdata-rebased.patch b/pkgs/servers/web-apps/plausible/tzdata-rebased.patch
new file mode 100644
index 00000000000..462ab3cb6d6
--- /dev/null
+++ b/pkgs/servers/web-apps/plausible/tzdata-rebased.patch
@@ -0,0 +1,21 @@
+diff --git a/config/runtime.exs b/config/runtime.exs
+index 7c9cc14..8facd05 100644
+--- a/config/runtime.exs
++++ b/config/runtime.exs
+@@ -15,9 +15,7 @@ end
+ base_url = URI.parse(base_url)
+ 
+ if base_url.scheme not in ["http", "https"] do
+-  raise "BASE_URL must start with `http` or `https`. Currently configured as `#{
+-          System.get_env("BASE_URL")
+-        }`"
++  raise "BASE_URL must start with `http` or `https`. Currently configured as `#{System.get_env("BASE_URL")}`"
+ end
+ 
+ secret_key_base =
+@@ -300,3 +298,5 @@ if appsignal_api_key do
+     env: env,
+     active: true
+ end
++
++config :tzdata, :data_dir, System.get_env("TZDATA_DIR", "priv")