diff --git a/R/acs.R b/R/acs.R
index 66004d4..4e52564 100644
--- a/R/acs.R
+++ b/R/acs.R
@@ -42,7 +42,7 @@
 #'   be included in your output. Usually a variable (e.g. total population) that
 #'   you'll want to use as a denominator or comparison.
 #' @param key Your Census API key. Obtain one at
-#'   \url{http://api.census.gov/data/key_signup.html}
+#'   \url{https://api.census.gov/data/key_signup.html}
 #' @param moe_level The confidence level of the returned margin of error.  One
 #'   of 90 (the default), 95, or 99.
 #' @param survey The ACS contains one-year, three-year, and five-year surveys
diff --git a/R/census.R b/R/census.R
index daec923..ddc489d 100644
--- a/R/census.R
+++ b/R/census.R
@@ -38,7 +38,7 @@
 #'                    to be included in your output. Usually a variable (e.g. total population)
 #'                    that you'll want to use as a denominator or comparison.
 #' @param key Your Census API key.
-#'            Obtain one at \url{http://api.census.gov/data/key_signup.html}
+#'            Obtain one at \url{https://api.census.gov/data/key_signup.html}
 #' @param show_call if TRUE, display call made to Census API. This can be very useful
 #'                  in debugging and determining if error messages returned are
 #'                  due to tidycensus or the Census API. Copy to the API call into
diff --git a/R/estimates.R b/R/estimates.R
index 369acdd..514f74c 100644
--- a/R/estimates.R
+++ b/R/estimates.R
@@ -37,7 +37,7 @@
 #'                  mapping of the entire US.  As of May 2021, we recommend using \code{tigris::shift_geometry()}
 #'                  instead.
 #' @param key Your Census API key.
-#'            Obtain one at \url{http://api.census.gov/data/key_signup.html}.  Can be stored
+#'            Obtain one at \url{https://api.census.gov/data/key_signup.html}.  Can be stored
 #'            in your .Renviron with \code{census_api_key("YOUR KEY", install = TRUE)}
 #' @param show_call if TRUE, display call made to Census API. This can be very useful
 #'                  in debugging and determining if error messages returned are
diff --git a/R/flows.R b/R/flows.R
index 1a35863..4854c23 100644
--- a/R/flows.R
+++ b/R/flows.R
@@ -9,9 +9,9 @@
 #'   geographies as well as the number of people who moved in, out, and net
 #'   movers of each geography (`MOVEDIN`, `MOVEDOUT`, `MOVEDNET`). If additional
 #'   variables are specified, they are pulled in addition to the default
-#'   variables. The names of additional variables can be found in the [Census
+#'   variables. The names of additional variables can be found in the Census
 #'   Migration Flows API
-#'   documentation](https://api.census.gov/data/2018/acs/flows/variables.html).
+#'   documentation at \url{https://api.census.gov/data/2018/acs/flows/variables.html}.
 #' @param breakdown A character vector of the population breakdown
 #'   characteristics to be crossed with migration flows data. For datasets
 #'   between 2006-2010 and 2011-2015, selected demographic characteristics such
@@ -19,9 +19,9 @@
 #'   `"AGE"`, `"SEX"`, `"RACE"`, `"HSGP"`, `"REL"`, `"HHT"`, `"TEN"`, `"ENG"`,
 #'   `"POB"`, `"YEARS"`, `"ESR"`, `"OCC"`, `"WKS"`, `"SCHL"`, `"AHINC"`,
 #'   `"APINC"`, and `"HISP_ORIGIN"`. For more information and to see which
-#'   characteristics are available in each year, visit the [Census Migration
+#'   characteristics are available in each year, visit the Census Migration
 #'   Flows
-#'   documentation](https://www.census.gov/data/developers/data-sets/acs-migration-flows.html).
+#'   documentation at \url{https://www.census.gov/data/developers/data-sets/acs-migration-flows.html}.
 #'    Note: not all characteristics are available in all years.
 #' @param breakdown_labels Whether or not to add columns with labels for the
 #'   breakdown characteristic codes. Defaults to `FALSE`.
@@ -47,7 +47,7 @@
 #'   the sf object. The destination point feature is returned in the `centroid2`
 #'   column.
 #' @param key Your Census API key. Obtain one at
-#'   \url{http://api.census.gov/data/key_signup.html}
+#'   \url{https://api.census.gov/data/key_signup.html}
 #' @param moe_level The confidence level of the returned margin of error.  One
 #'   of 90 (the default), 95, or 99.
 #' @param show_call if TRUE, display call made to Census API. This can be very
diff --git a/R/pums.R b/R/pums.R
index 129c516..a264b90 100644
--- a/R/pums.R
+++ b/R/pums.R
@@ -28,7 +28,7 @@
 #'   tidycensus or the Census API. Copy to the API call into a browser and see
 #'   what is returned by the API directly. Defaults to FALSE.
 #' @param key Your Census API key. Obtain one at
-#'   \url{http://api.census.gov/data/key_signup.html}
+#'   \url{https://api.census.gov/data/key_signup.html}
 #'
 #' @return A tibble of microdata from the ACS PUMS API.
 #' @export
diff --git a/man/get_acs.Rd b/man/get_acs.Rd
index 22e3984..258d362 100644
--- a/man/get_acs.Rd
+++ b/man/get_acs.Rd
@@ -83,7 +83,7 @@ be included in your output. Usually a variable (e.g. total population) that
 you'll want to use as a denominator or comparison.}
 
 \item{key}{Your Census API key. Obtain one at
-\url{http://api.census.gov/data/key_signup.html}}
+\url{https://api.census.gov/data/key_signup.html}}
 
 \item{moe_level}{The confidence level of the returned margin of error.  One
 of 90 (the default), 95, or 99.}
diff --git a/man/get_decennial.Rd b/man/get_decennial.Rd
index 31503cc..3fe3674 100644
--- a/man/get_decennial.Rd
+++ b/man/get_decennial.Rd
@@ -75,7 +75,7 @@ to be included in your output. Usually a variable (e.g. total population)
 that you'll want to use as a denominator or comparison.}
 
 \item{key}{Your Census API key.
-Obtain one at \url{http://api.census.gov/data/key_signup.html}}
+Obtain one at \url{https://api.census.gov/data/key_signup.html}}
 
 \item{show_call}{if TRUE, display call made to Census API. This can be very useful
 in debugging and determining if error messages returned are
diff --git a/man/get_estimates.Rd b/man/get_estimates.Rd
index 563fcd8..0d47ded 100644
--- a/man/get_estimates.Rd
+++ b/man/get_estimates.Rd
@@ -74,7 +74,7 @@ mapping of the entire US.  As of May 2021, we recommend using \code{tigris::shif
 instead.}
 
 \item{key}{Your Census API key.
-Obtain one at \url{http://api.census.gov/data/key_signup.html}.  Can be stored
+Obtain one at \url{https://api.census.gov/data/key_signup.html}.  Can be stored
 in your .Renviron with \code{census_api_key("YOUR KEY", install = TRUE)}}
 
 \item{show_call}{if TRUE, display call made to Census API. This can be very useful
diff --git a/man/get_flows.Rd b/man/get_flows.Rd
index 9760432..6285df9 100644
--- a/man/get_flows.Rd
+++ b/man/get_flows.Rd
@@ -31,9 +31,9 @@ names. By default, `get_flows()` returns the GEOID and names of the
 geographies as well as the number of people who moved in, out, and net
 movers of each geography (`MOVEDIN`, `MOVEDOUT`, `MOVEDNET`). If additional
 variables are specified, they are pulled in addition to the default
-variables. The names of additional variables can be found in the [Census
+variables. The names of additional variables can be found in the Census
 Migration Flows API
-documentation](https://api.census.gov/data/2018/acs/flows/variables.html).}
+documentation at \url{https://api.census.gov/data/2018/acs/flows/variables.html}.}
 
 \item{breakdown}{A character vector of the population breakdown
 characteristics to be crossed with migration flows data. For datasets
@@ -42,9 +42,9 @@ as age, race, employment status, etc. are available. Possible values are
 `"AGE"`, `"SEX"`, `"RACE"`, `"HSGP"`, `"REL"`, `"HHT"`, `"TEN"`, `"ENG"`,
 `"POB"`, `"YEARS"`, `"ESR"`, `"OCC"`, `"WKS"`, `"SCHL"`, `"AHINC"`,
 `"APINC"`, and `"HISP_ORIGIN"`. For more information and to see which
-characteristics are available in each year, visit the [Census Migration
+characteristics are available in each year, visit the Census Migration
 Flows
-documentation](https://www.census.gov/data/developers/data-sets/acs-migration-flows.html).
+documentation at \url{https://www.census.gov/data/developers/data-sets/acs-migration-flows.html}.
  Note: not all characteristics are available in all years.}
 
 \item{breakdown_labels}{Whether or not to add columns with labels for the
@@ -78,7 +78,7 @@ the sf object. The destination point feature is returned in the `centroid2`
 column.}
 
 \item{key}{Your Census API key. Obtain one at
-\url{http://api.census.gov/data/key_signup.html}}
+\url{https://api.census.gov/data/key_signup.html}}
 
 \item{moe_level}{The confidence level of the returned margin of error.  One
 of 90 (the default), 95, or 99.}
diff --git a/man/get_pums.Rd b/man/get_pums.Rd
index ea205bd..4923e33 100644
--- a/man/get_pums.Rd
+++ b/man/get_pums.Rd
@@ -55,7 +55,7 @@ tidycensus or the Census API. Copy to the API call into a browser and see
 what is returned by the API directly. Defaults to FALSE.}
 
 \item{key}{Your Census API key. Obtain one at
-\url{http://api.census.gov/data/key_signup.html}}
+\url{https://api.census.gov/data/key_signup.html}}
 }
 \value{
 A tibble of microdata from the ACS PUMS API.