diff --git a/mix.lock b/mix.lock
index 95a4c0a1d..947382e3e 100644
--- a/mix.lock
+++ b/mix.lock
@@ -144,7 +144,7 @@
   "timex": {:hex, :timex, "3.7.11", "bb95cb4eb1d06e27346325de506bcc6c30f9c6dea40d1ebe390b262fad1862d1", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.20", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 1.1", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm", "8b9024f7efbabaf9bd7aa04f65cf8dcd7c9818ca5737677c7b76acbc6a94d1aa"},
   "tls_certificate_check": {:hex, :tls_certificate_check, "1.21.0", "042ab2c0c860652bc5cf69c94e3a31f96676d14682e22ec7813bd173ceff1788", [:rebar3], [{:ssl_verify_fun, "~> 1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm", "6cee6cffc35a390840d48d463541d50746a7b0e421acaadb833cfc7961e490e7"},
   "tzdata": {:hex, :tzdata, "1.1.1", "20c8043476dfda8504952d00adac41c6eda23912278add38edc140ae0c5bcc46", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "a69cec8352eafcd2e198dea28a34113b60fdc6cb57eb5ad65c10292a6ba89787"},
-  "ua_inspector": {:git, "https://github.com/plausible/ua_inspector.git", "09079e7d137c149a4a8c6ff1f7efb3c9457ddee8", [branch: "sanitize-pre"]},
+  "ua_inspector": {:git, "https://github.com/plausible/ua_inspector.git", "25cba4c910e80d7c34bbb1bbb939372260d088e8", [branch: "sanitize-pre"]},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
   "websock": {:hex, :websock, "0.5.3", "2f69a6ebe810328555b6fe5c831a851f485e303a7c8ce6c5f675abeb20ebdadc", [:mix], [], "hexpm", "6105453d7fac22c712ad66fab1d45abdf049868f253cf719b625151460b8b453"},
   "websock_adapter": {:hex, :websock_adapter, "0.5.5", "9dfeee8269b27e958a65b3e235b7e447769f66b5b5925385f5a569269164a210", [:mix], [{:bandit, ">= 0.6.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.6", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "4b977ba4a01918acbf77045ff88de7f6972c2a009213c515a445c48f224ffce9"},
diff --git a/test/plausible/ingestion/event_test.exs b/test/plausible/ingestion/event_test.exs
index e4fb47455..384ff658f 100644
--- a/test/plausible/ingestion/event_test.exs
+++ b/test/plausible/ingestion/event_test.exs
@@ -20,6 +20,30 @@ defmodule Plausible.Ingestion.EventTest do
     assert {:ok, %{buffered: [_], dropped: []}} = Event.build_and_buffer(request)
   end
 
+  @regressive_user_agents [
+    ~s|Mozilla/5.0 (Macintosh; Intel Mac OS X 13_2_1) AppleWebKit/537.3666 (KHTML, like Gecko) Chrome/110.0.0.0.0 Safari/537.3666|,
+    ~s|Mozilla/5.0 (Linux; arm_64; Android 10; Mi Note 10) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.5765.05 Mobile Safari/537.36|
+  ]
+
+  for {user_agent, idx} <- Enum.with_index(@regressive_user_agents) do
+    test "processes user agents known to cause problems parsing in the past (case #{idx})" do
+      site = insert(:site)
+
+      payload = %{
+        name: "pageview",
+        url: "http://#{site.domain}"
+      }
+
+      conn =
+        build_conn(:post, "/api/events", payload)
+        |> Plug.Conn.put_req_header("user-agent", unquote(user_agent))
+
+      assert {:ok, request} = Request.build(conn)
+
+      assert {:ok, %{buffered: [_], dropped: []}} = Event.build_and_buffer(request)
+    end
+  end
+
   test "drops verification agent" do
     site = insert(:site)