diff --git a/R/data.R b/R/data.R
index d32e3c4..b41f33f 100644
--- a/R/data.R
+++ b/R/data.R
@@ -17,7 +17,7 @@
 #' @source Daniel Coven's federalgovernmentzipcodes.us web site and the
 #'   CivicSpace US ZIP Code Database written by Schuyler Erle
 #'   <schuyler@@geocoder.us>, 5 August 2004. Original CSV files available from
-#'   \url{http://federalgovernmentzipcodes.us/free-zipcode-database-Primary.csv}
+#'   \url{https://web.archive.org/web/20221005220101/http://federalgovernmentzipcodes.us/free-zipcode-database-Primary.csv}
 "zipcodes"
 
 #' @title USPS Street Abbreviations
diff --git a/man/zipcodes.Rd b/man/zipcodes.Rd
index 8d12c65..423c9bf 100644
--- a/man/zipcodes.Rd
+++ b/man/zipcodes.Rd
@@ -17,7 +17,7 @@ A tibble with 44,336 rows of 3 variables:
 Daniel Coven's federalgovernmentzipcodes.us web site and the
 CivicSpace US ZIP Code Database written by Schuyler Erle
 \href{mailto:schuyler@geocoder.us}{schuyler@geocoder.us}, 5 August 2004. Original CSV files available from
-\url{http://federalgovernmentzipcodes.us/free-zipcode-database-Primary.csv}
+\url{https://web.archive.org/web/20221005220101/http://federalgovernmentzipcodes.us/free-zipcode-database-Primary.csv}
 }
 \usage{
 zipcodes
diff --git a/vignettes/normalize-geography.Rmd b/vignettes/normalize-geography.Rmd
index 722fb38..6543456 100644
--- a/vignettes/normalize-geography.Rmd
+++ b/vignettes/normalize-geography.Rmd
@@ -340,7 +340,7 @@ and addresses might bring up search results alongside one of our other sets of
 public data: campaign expenditures, registered voters, nonprofit organizations,
 stimulus spending, government contracts, lobbyist registrations, etc.
 
-[1bil]: https://investigativereportingworkshop.org/2021/02/17/1-billion-records-and-counting-the-accountability-project-reaches-new-milestone/
+[1bil]: https://archive.investigativereportingworkshop.org/2021/02/17/1-billion-records-and-counting-the-accountability-project-reaches-new-milestone/
 
 ```{r echo=FALSE}
 kable(vt)