diff --git a/DESCRIPTION b/DESCRIPTION
index 50d1beca..c7bd4e77 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -65,7 +65,7 @@ Imports:
   ps,
   R6 (>= 2.4.1),
   rlang (>= 1.0.0),
-  secretbase (>= 0.4.0),
+  secretbase (>= 0.5.0),
   stats,
   tibble (>= 3.0.1),
   tidyselect (>= 1.1.0),
diff --git a/NAMESPACE b/NAMESPACE
index d83c02b0..b5841456 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -561,7 +561,7 @@ importFrom(rlang,inform)
 importFrom(rlang,is_installed)
 importFrom(rlang,quo_squash)
 importFrom(rlang,warn)
-importFrom(secretbase,sha3)
+importFrom(secretbase,shake256)
 importFrom(secretbase,siphash13)
 importFrom(stats,complete.cases)
 importFrom(stats,runif)
diff --git a/R/tar_package.R b/R/tar_package.R
index 94859333..b60b585f 100644
--- a/R/tar_package.R
+++ b/R/tar_package.R
@@ -26,7 +26,7 @@
 #' @importFrom R6 R6Class
 #' @importFrom rlang abort as_function check_installed enquo inform
 #'   is_installed quo_squash warn
-#' @importFrom secretbase sha3 siphash13
+#' @importFrom secretbase shake256 siphash13
 #' @importFrom stats complete.cases runif
 #' @importFrom tibble as_tibble
 #' @importFrom tidyselect all_of any_of contains ends_with everything
diff --git a/R/tar_seed_create.R b/R/tar_seed_create.R
index 89d0fdf2..8f560cca 100644
--- a/R/tar_seed_create.R
+++ b/R/tar_seed_create.R
@@ -32,10 +32,9 @@
 #'   aforementioned section of the paper using the
 #'   `secretbase` package by Charlie Gao (2024) \doi{10.5281/zenodo.10553140}.
 #'   To generate the 32-bit integer `seed` argument of `set.seed()`
-#'   for each target, `secretbase` generates a cryptographic SHA3 hash
-#'   and robustly converts it to 32-bit output using the SHAKE256
-#'   extendable output function (XOF). `secretbase` uses algorithms from
-#'   the `Mbed TLS` C library.
+#'   for each target, `secretbase` generates a cryptographic hash using the
+#'   SHAKE256 extendable output function (XOF). `secretbase` uses algorithms
+#'   from the `Mbed TLS` C library.
 #' @return Integer of length 1, the target seed.
 #' @param name Character of length 1, target name.
 #' @param global_seed Integer of length 1, the overarching global
@@ -59,5 +58,5 @@ tar_seed_create <- function(name, global_seed = NULL) {
     return(NA_integer_)
   }
   x <- list(as.character(name), as.integer(global_seed))
-  secretbase::sha3(x = x, bits = 32L, convert = NA)
+  secretbase::shake256(x = x, bits = 32L, convert = NA)
 }
diff --git a/man/tar_seed_create.Rd b/man/tar_seed_create.Rd
index 5e0409c3..417fe1d3 100644
--- a/man/tar_seed_create.Rd
+++ b/man/tar_seed_create.Rd
@@ -56,10 +56,9 @@ under "How to produce parallel streams and substreams").
 aforementioned section of the paper using the
 \code{secretbase} package by Charlie Gao (2024) \doi{10.5281/zenodo.10553140}.
 To generate the 32-bit integer \code{seed} argument of \code{set.seed()}
-for each target, \code{secretbase} generates a cryptographic SHA3 hash
-and robustly converts it to 32-bit output using the SHAKE256
-extendable output function (XOF). \code{secretbase} uses algorithms from
-the \verb{Mbed TLS} C library.
+for each target, \code{secretbase} generates a cryptographic hash using the
+SHAKE256 extendable output function (XOF). \code{secretbase} uses algorithms
+from the \verb{Mbed TLS} C library.
 }
 
 \references{
diff --git a/man/tar_seed_get.Rd b/man/tar_seed_get.Rd
index 74c5da18..02a761a8 100644
--- a/man/tar_seed_get.Rd
+++ b/man/tar_seed_get.Rd
@@ -57,10 +57,9 @@ under "How to produce parallel streams and substreams").
 aforementioned section of the paper using the
 \code{secretbase} package by Charlie Gao (2024) \doi{10.5281/zenodo.10553140}.
 To generate the 32-bit integer \code{seed} argument of \code{set.seed()}
-for each target, \code{secretbase} generates a cryptographic SHA3 hash
-and robustly converts it to 32-bit output using the SHAKE256
-extendable output function (XOF). \code{secretbase} uses algorithms from
-the \verb{Mbed TLS} C library.
+for each target, \code{secretbase} generates a cryptographic hash using the
+SHAKE256 extendable output function (XOF). \code{secretbase} uses algorithms
+from the \verb{Mbed TLS} C library.
 }
 
 \examples{
diff --git a/man/tar_seed_set.Rd b/man/tar_seed_set.Rd
index 6c8e6554..8fba8db7 100644
--- a/man/tar_seed_set.Rd
+++ b/man/tar_seed_set.Rd
@@ -58,10 +58,9 @@ under "How to produce parallel streams and substreams").
 aforementioned section of the paper using the
 \code{secretbase} package by Charlie Gao (2024) \doi{10.5281/zenodo.10553140}.
 To generate the 32-bit integer \code{seed} argument of \code{set.seed()}
-for each target, \code{secretbase} generates a cryptographic SHA3 hash
-and robustly converts it to 32-bit output using the SHAKE256
-extendable output function (XOF). \code{secretbase} uses algorithms from
-the \verb{Mbed TLS} C library.
+for each target, \code{secretbase} generates a cryptographic hash using the
+SHAKE256 extendable output function (XOF). \code{secretbase} uses algorithms
+from the \verb{Mbed TLS} C library.
 }
 
 \examples{