diff --git a/vulnerabilities/importers/nginx.py b/vulnerabilities/importers/nginx.py
index e74577f98..19955af07 100644
--- a/vulnerabilities/importers/nginx.py
+++ b/vulnerabilities/importers/nginx.py
@@ -66,7 +66,7 @@ def updated_advisories(self):
 
     def to_advisories(self, data):
         advisories = []
-        soup = BeautifulSoup(data)
+        soup = BeautifulSoup(data, features="lxml")
         vuln_list = soup.select("li p")
 
         # Example value of `vuln_list` :
diff --git a/vulnerabilities/importers/postgresql.py b/vulnerabilities/importers/postgresql.py
index 53961e994..fe45f4f7b 100644
--- a/vulnerabilities/importers/postgresql.py
+++ b/vulnerabilities/importers/postgresql.py
@@ -58,7 +58,7 @@ def updated_advisories(self):
 
 def to_advisories(data):
     advisories = []
-    soup = BeautifulSoup(data)
+    soup = BeautifulSoup(data, features="lxml")
     table = soup.select("table")[0]
     for row in table.select("tbody tr"):
         ref_col, affected_col, fixed_col, severity_score_col, desc_col = row.select("td")