diff --git a/manifest.toml b/manifest.toml
index 3e6d65e..8e1ce9d 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -69,4 +69,4 @@ ram.runtime = "50M"
     main.url = "/"
 
     [resources.apt]
-    packages = ["python3", "python3-venv"]
+    packages = ["python3", "python3-venv", "python3-dev"]
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 63798dc..f08c133 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -18,7 +18,7 @@ ynh_sync_admin_user_to_wekan() {
     ynh_add_config --template="add_admin_user.py" --destination="$tmp/add_admin_user.py"
 
     python3 -m venv $tmp
-    $tmp/bin/pip install pymongo python-ldap environs python3-dev
+    $tmp/bin/pip install pymongo python-ldap environs
     
     source "$install_dir/.env"