diff --git a/parsedmarc/resources/senders/README.md b/parsedmarc/resources/senders/README.md
index 1ebd729..56b84de 100644
--- a/parsedmarc/resources/senders/README.md
+++ b/parsedmarc/resources/senders/README.md
@@ -1,5 +1,12 @@
 # About
 
+A database of information about services that send email.
+
+## Updates
+
+To update the database with the latest information from dmarc.io][dmarc.io], start a
+[Splash][splash] Docker container, then run `updatedb.py`
+
 ## Credit
 
 `senders.sqlite` contains information from [dmarc.io][dmarc.io] that is licensed under a 
@@ -11,4 +18,5 @@
 [Creative Commons Attribution-ShareAlike 4.0 International License][cc].
 
 [dmarc.io]: https://dmarc.io/
+[splash]: https://splash.readthedocs.io/en/stable/
 [cc]: https://creativecommons.org/licenses/by-sa/4.0/
\ No newline at end of file
diff --git a/parsedmarc/resources/senders/senders.sqlite b/parsedmarc/resources/senders/senders.sqlite
index 2069208..43e8e0c 100644
Binary files a/parsedmarc/resources/senders/senders.sqlite and b/parsedmarc/resources/senders/senders.sqlite differ
diff --git a/parsedmarc/resources/senders/updatedb.py b/parsedmarc/resources/senders/updatedb.py
index ea34221..2a8fc52 100644
--- a/parsedmarc/resources/senders/updatedb.py
+++ b/parsedmarc/resources/senders/updatedb.py
@@ -1,3 +1,5 @@
+import requests
+
 import sqlite3
 
 from bs4 import BeautifulSoup
@@ -35,8 +37,8 @@ CREATE TABLE IF NOT EXISTS "reverse_dns" (
 )
 """)
 curser = db.cursor()
-with open("sources.html") as sources_file:
-    content = sources_file.read()
+content = requests.get("http://localhost:8050/render.html",
+                       params=dict(url="https://dmarc.io/sources/")).content
 soup = BeautifulSoup(content, "html.parser")
 table = soup.find("tbody")
 rows = table.find_all("tr")
@@ -61,3 +63,29 @@ for row in rows:
     INSERT OR IGNORE INTO senders(name, spf_aligned, dkim_aligned,
     known_to_forward, dmarc_io_uri) values (?,?,?,?,?)""", params)
     db.commit()
+content = requests.get("http://localhost:8050/render.html",
+                       params=dict(url="https://dmarc.io/forwarders/")).content
+soup = BeautifulSoup(content, "html.parser")
+table = soup.find("tbody")
+rows = table.find_all("tr")
+for row in rows:
+    data = row.find_all("td")
+    link = data[0].find("a")
+    name = link.text
+    dmarc_io_uri = link.get("href")
+    forward_dkim_intact = len(data[1].find_all("i"))
+    forward_own_envelope_domain = len(data[2].find_all("i"))
+    params = (name, forward_dkim_intact, forward_own_envelope_domain, 1,
+              dmarc_io_uri)
+    curser.execute("""
+    UPDATE senders
+    SET name = ?,
+        forward_dkim_intact = ?,
+        forward_own_envelope_domain = ?,
+        known_to_forward = ?
+    WHERE dmarc_io_uri = ?""", params)
+    db.commit()
+    curser.execute("""
+    INSERT OR IGNORE INTO senders(name, spf_aligned, dkim_aligned,
+    known_to_forward, dmarc_io_uri) values (?,?,?,?,?)""", params)
+    db.commit()