diff --git a/manifest.toml b/manifest.toml
index 07e70f6..fffc486 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -48,4 +48,4 @@ ram.runtime = "50M"
     [resources.ports]
 
     [resources.apt]
-    packages = "python3, python3-venv"
+    packages = "python3, python3-dev, python3-pip, virtualenv"
diff --git a/scripts/install b/scripts/install
index e784878..9b23881 100755
--- a/scripts/install
+++ b/scripts/install
@@ -21,15 +21,12 @@ chown -R $app:www-data "$install_dir"
 #=================================================
 # SPECIFIC SETUP
 #=================================================
-ynh_script_progression --message="Installing dependencies..." --weight=2
-
-ynh_exec_warn_less python3 -m pip install pipenv
-
 ynh_script_progression --message="Installing LibreTranslate..." --weight=2
 
+ynh_exec_as $app virtualenv --python=python3 --system-site-packages "$install_dir/venv"
+
 pushd $install_dir
-	mkdir -p .venv
-	PIPENV_VENV_IN_PROJECT="enabled" PIPENV_SKIP_LOCK=true ynh_exec_warn_less python3 -m pipenv install libretranslate==$libretranslate_version  2>&1
+	ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH pip install libretranslate==$libretranslate_version
 popd
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 9ef093e..a05afd2 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -38,11 +38,10 @@ chown -R $app:www-data "$install_dir"
 #=================================================
 ynh_script_progression --message="Installing LibreTranslate..." --weight=2
 
-ynh_exec_warn_less python3 -m pip install pipenv
+ynh_exec_as $app virtualenv --python=python3 --system-site-packages "$install_dir/venv"
 
 pushd $install_dir
-	mkdir -p .venv
-	PIPENV_VENV_IN_PROJECT="enabled" PIPENV_SKIP_LOCK=true ynh_exec_warn_less python3 -m pipenv install libretranslate==$libretranslate_version  2>&1
+	ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH pip install libretranslate==$libretranslate_version
 popd
 
 #=================================================