diff --git a/requirements.txt b/requirements.txt
index ea4a5a7a..5d508d7e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,12 @@
-certifi==2019.3.9
+certifi==2020.4.5.1
 babel==2.7.0
 flask-babel==1.0.0
-flask==1.0.2
-idna==2.8
-jinja2==2.10.1
-lxml==4.3.3
+flask==1.1.2
+idna==2.9
+jinja2==2.11.1
+lxml==4.5.0
 pygments==2.1.3
-pyopenssl==19.0.0
+pyopenssl==19.1.0
 python-dateutil==2.8.0
-pyyaml==5.1
-requests[socks]==2.22.0
+pyyaml==5.3.1
+requests[socks]==2.23.0
diff --git a/searx/engines/startpage.py b/searx/engines/startpage.py
index 76567396..95373493 100644
--- a/searx/engines/startpage.py
+++ b/searx/engines/startpage.py
@@ -99,11 +99,14 @@ def response(resp):
         if re.match(r"^([1-9]|[1-2][0-9]|3[0-1]) [A-Z][a-z]{2} [0-9]{4} \.\.\. ", content):
             date_pos = content.find('...') + 4
             date_string = content[0:date_pos - 5]
-            published_date = parser.parse(date_string, dayfirst=True)
-
             # fix content string
             content = content[date_pos:]
 
+            try:
+                published_date = parser.parse(date_string, dayfirst=True)
+            except ValueError:
+                pass
+
         # check if search result starts with something like: "5 days ago ... "
         elif re.match(r"^[0-9]+ days? ago \.\.\. ", content):
             date_pos = content.find('...') + 4