diff --git a/mix.exs b/mix.exs
index ebe3ad6b6816..83994fb3c562 100644
--- a/mix.exs
+++ b/mix.exs
@@ -127,7 +127,7 @@ defmodule Plausible.MixProject do
       {:ex_doc, "~> 0.28", only: :dev, runtime: false},
       {:ex_money, "~> 5.12"},
       {:mjml_eex, "~> 0.11.0"},
-      {:mjml, "~> 1.5.0"},
+      {:mjml, "~> 3.1.0"},
       {:heroicons, "~> 0.5.0"},
       {:zxcvbn, git: "https://github.com/techgaun/zxcvbn-elixir.git"},
       {:open_api_spex, "~> 3.18"},
diff --git a/mix.lock b/mix.lock
index 89c5823716a4..0b747d5e5b16 100644
--- a/mix.lock
+++ b/mix.lock
@@ -83,7 +83,7 @@
   "mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
   "mimerl": {:hex, :mimerl, "1.3.0", "d0cd9fc04b9061f82490f6581e0128379830e78535e017f7780f37fea7545726", [:rebar3], [], "hexpm", "a1e15a50d1887217de95f0b9b0793e32853f7c258a5cd227650889b38839fe9d"},
   "mint": {:hex, :mint, "1.6.2", "af6d97a4051eee4f05b5500671d47c3a67dac7386045d87a904126fd4bbcea2e", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0 or ~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "5ee441dffc1892f1ae59127f74afe8fd82fda6587794278d924e4d90ea3d63f9"},
-  "mjml": {:hex, :mjml, "1.5.0", "20a4ed2490a60c6928d45a69b64fb45ce8d8bdac686ef689315b0adda69c6406", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.6.0", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "44dc36c0fccf52eeb8e0afcb26a863ba41a5f9adcb71bb32e084619a13bb4cdf"},
+  "mjml": {:hex, :mjml, "3.1.0", "549e985bc03be1af563c62a34c8e62bdb8d0baaa6b31af705a5bdf67e20f22b7", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.7.0", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "987674d296b14b628e5e5d2d8b910e6501cdfafa0239527d8b633880dc595344"},
   "mjml_eex": {:hex, :mjml_eex, "0.11.0", "f0845730f4caccddea7c98ab5ad1485831446b7c09896fa5ed54b3fa0c431e72", [:mix], [{:erlexec, "~> 2.0", [hex: :erlexec, repo: "hexpm", optional: true]}, {:mjml, "~> 1.0 or ~> 2.0 or ~> 3.0", [hex: :mjml, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 3.2 or ~> 4.0", [hex: :phoenix_html, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "0c60732fe766336ec504a94cad4ebf30405f05fa8920a544ff0ef936252438ac"},
   "mox": {:hex, :mox, "1.1.0", "0f5e399649ce9ab7602f72e718305c0f9cdc351190f72844599545e4996af73c", [:mix], [], "hexpm", "d44474c50be02d5b72131070281a5d3895c0e7a95c780e90bc0cfe712f633a13"},
   "mua": {:hex, :mua, "0.2.3", "46b29b7b2bb14105c0b7be9526f7c452df17a7841b30b69871c024a822ff551c", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}], "hexpm", "7fe861a87fcc06a980d3941bbcb2634e5f0f30fd6ad15ef6c0423ff9dc7e46de"},
@@ -131,7 +131,7 @@
   "ref_inspector": {:hex, :ref_inspector, "2.0.0", "f3e97e51d9782de4c792f56eed26c80903bc39174c878285392ce76d5e67fe98", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}, {:yamerl, "~> 0.7", [hex: :yamerl, repo: "hexpm", optional: false]}], "hexpm", "bf62f3f1a87d6b8b30f457a480668f965373e64f184611282b5e89d8dd81fd33"},
   "referrer_blocklist": {:git, "https://github.com/plausible/referrer-blocklist.git", "d6f52c225cccb4f04b80e3a5d588868ec234139d", []},
   "req": {:hex, :req, "0.5.0", "6d8a77c25cfc03e06a439fb12ffb51beade53e3fe0e2c5e362899a18b50298b3", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.17", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 1.6 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "dda04878c1396eebbfdec6db6f3d4ca609e5c8846b7ee88cc56eb9891406f7a3"},
-  "rustler_precompiled": {:hex, :rustler_precompiled, "0.6.2", "d2218ba08a43fa331957f30481d00b666664d7e3861431b02bd3f4f30eec8e5b", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:rustler, "~> 0.23", [hex: :rustler, repo: "hexpm", optional: true]}], "hexpm", "b9048eaed8d7d14a53f758c91865cc616608a438d2595f621f6a4b32a5511709"},
+  "rustler_precompiled": {:hex, :rustler_precompiled, "0.7.3", "42cb9449785cd86c87453e39afdd27a0bdfa5c77a4ec5dc5ce45112e06b9f89b", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:rustler, "~> 0.23", [hex: :rustler, repo: "hexpm", optional: true]}], "hexpm", "cbc4b3777682e5f6f43ed39b0e0b4a42dccde8053aba91b4514e8f5ff9a5ac6d"},
   "scrivener": {:hex, :scrivener, "2.7.2", "1d913c965ec352650a7f864ad7fd8d80462f76a32f33d57d1e48bc5e9d40aba2", [:mix], [], "hexpm", "7866a0ec4d40274efbee1db8bead13a995ea4926ecd8203345af8f90d2b620d9"},
   "scrivener_ecto": {:hex, :scrivener_ecto, "2.7.0", "cf64b8cb8a96cd131cdbcecf64e7fd395e21aaa1cb0236c42a7c2e34b0dca580", [:mix], [{:ecto, "~> 3.3", [hex: :ecto, repo: "hexpm", optional: false]}, {:scrivener, "~> 2.4", [hex: :scrivener, repo: "hexpm", optional: false]}], "hexpm", "e809f171687806b0031129034352f5ae44849720c48dd839200adeaf0ac3e260"},
   "sentry": {:hex, :sentry, "10.2.0", "046ca9fabfca3568b35ddb638d02c427e47380b2390416c4b26fee9c4ce56450", [:mix], [{:hackney, "~> 1.8", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: true]}, {:nimble_options, "~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_ownership, "~> 0.3.0", [hex: :nimble_ownership, repo: "hexpm", optional: false]}, {:plug, "~> 1.6", [hex: :plug, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "4786fa2a08c2ddf48bfd79c54787a8e5b2f321368d781052fd20327318da8188"},