diff --git a/config.py b/config.py
index 1bb03d9..8235991 100644
--- a/config.py
+++ b/config.py
@@ -249,7 +249,7 @@ def open_kindle_lemmas_dialog(self) -> None:
             gui.job_manager.run_threaded_job(job)
 
     def save_kindle_lemmas(self, lemmas, abort=None, log=None, notifications=None):
-        install_deps("lemminflect", None, notifications)
+        install_deps("lemminflect", notifications)
         notifications.put((0, _("Saving customized lemmas")))
         custom_path = custom_kindle_dump_path(self.plugin_path)
         if ismacos:
diff --git a/deps.py b/deps.py
index 8761d27..c9732a7 100644
--- a/deps.py
+++ b/deps.py
@@ -26,10 +26,10 @@
 USE_SYSTEM_PYTHON = False
 
 
-def install_deps(model: str, book_fmt: str | None, notif: Any) -> None:
+def install_deps(pkg: str, notif: Any) -> None:
     global PY_PATH, LIBS_PATH, CALIBRE_DEBUG_PATH, RUNNABLE_PIP, USE_SYSTEM_PYTHON
     plugin_path = get_plugin_path()
-    USE_SYSTEM_PYTHON = ismacos or (isfrozen and model.endswith("_trf"))
+    USE_SYSTEM_PYTHON = ismacos or (isfrozen and pkg.endswith("_trf"))
 
     if PY_PATH is None:
         PY_PATH, py_version = which_python(USE_SYSTEM_PYTHON)
@@ -39,18 +39,20 @@ def install_deps(model: str, book_fmt: str | None, notif: Any) -> None:
             RUNNABLE_PIP = get_runnable_pip(PY_PATH)
 
     dep_versions = load_json_or_pickle(plugin_path, "data/deps.json")
-    if model == "lemminflect":
+    if pkg == "lemminflect":
         pip_install("lemminflect", dep_versions["lemminflect"], notif=notif)
-    elif model == "wiktionary_cjk":
+    elif pkg == "pyahocorasick":
         pip_install("pyahocorasick", dep_versions["pyahocorasick"], notif=notif)
+    elif pkg == "lxml":
+        pip_install("lxml", dep_versions["lxml"], notif=notif)
     else:
         # Install X-Ray dependencies
         pip_install("rapidfuzz", dep_versions["rapidfuzz"], notif=notif)
 
-        spacy_model_version = "3.4.1" if model.startswith("en") else "3.4.0"
-        url = f"https://github.com/explosion/spacy-models/releases/download/{model}-{spacy_model_version}/{model}-{spacy_model_version}-py3-none-any.whl"
-        pip_install(model, spacy_model_version, url=url, notif=notif)
-        if model.endswith("_trf"):
+        spacy_model_version = "3.4.1" if pkg.startswith("en") else "3.4.0"
+        url = f"https://github.com/explosion/spacy-models/releases/download/{pkg}-{spacy_model_version}/{pkg}-{spacy_model_version}-py3-none-any.whl"
+        pip_install(pkg, spacy_model_version, url=url, notif=notif)
+        if pkg.endswith("_trf"):
             from .config import prefs
 
             pip_install("cupy-wheel", dep_versions["cupy"], notif=notif)
@@ -185,7 +187,7 @@ def download_wiktionary(
     lemma_lang: str, gloss_lang: str, abort=None, log=None, notifications=None
 ) -> None:
     if lemma_lang in CJK_LANGS:
-        install_deps("wiktionary_cjk", None, notifications)
+        install_deps("pyahocorasick", notifications)
 
     if notifications:
         notifications.put((0, f"Downloading {lemma_lang}-{gloss_lang} Wiktionary file"))
diff --git a/parse_job.py b/parse_job.py
index d1e017e..6dcec01 100644
--- a/parse_job.py
+++ b/parse_job.py
@@ -112,8 +112,11 @@ def do_job(
     if not create_ww and not create_x:
         return return_values
 
+    cjk_epub_ww = book_fmt == "EPUB" and create_ww and lang["wiki"] in CJK_LANGS
+    if ismacos and cjk_epub_ww:
+        install_deps("lxml", notifications)
     if create_x:
-        install_deps(model, book_fmt, notifications)
+        install_deps(model, notifications)
 
     if notifications:
         notifications.put((0, "Creating files"))
@@ -122,12 +125,9 @@ def do_job(
     # macOS: bypass library validation
     # official calibre build: calibre's optimize level is 2 which removes docstring,
     # but the "transformers" package formats docstrings in their code
-    if (
-        ismacos
-        and (
-            create_x or (book_fmt == "EPUB" and create_ww and lang["wiki"] in CJK_LANGS)
-        )
-    ) or (create_x and isfrozen and model.endswith("_trf")):
+    if (ismacos and (create_x or cjk_epub_ww)) or (
+        create_x and isfrozen and model.endswith("_trf")
+    ):
         plugin_path = str(plugin_path)
         py_path, _ = which_python(True)
         args = [