diff --git a/DESCRIPTION b/DESCRIPTION
index bf2704ef..50dae8a3 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,5 +1,5 @@
Package: AMR
-Version: 1.6.0.9004
+Version: 1.6.0.9005
Date: 2021-04-16
Title: Antimicrobial Resistance Data Analysis
Authors@R: c(
diff --git a/NEWS.md b/NEWS.md
index fd7d3e95..779d7755 100755
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,4 +1,4 @@
-# AMR 1.6.0.9004
+# AMR 1.6.0.9005
## Last updated: 16 April 2021
### New
diff --git a/R/aa_helper_functions.R b/R/aa_helper_functions.R
index cdf69da1..084e0d35 100755
--- a/R/aa_helper_functions.R
+++ b/R/aa_helper_functions.R
@@ -222,7 +222,7 @@ is_valid_regex <- function(x) {
error = function(e) rep(TRUE, length(x)))
regex_valid <- vapply(FUN.VALUE = logical(1),
X = x,
- FUN = function(y) !"try-error" %in% class(try(grepl(y, ""),
+ FUN = function(y) !"try-error" %in% class(try(grepl(y, "", perl = TRUE),
silent = TRUE)),
USE.NAMES = FALSE)
regex_at_all & regex_valid
diff --git a/data-raw/AMR_latest.tar.gz b/data-raw/AMR_latest.tar.gz
index 400006f7..230ebdb5 100644
Binary files a/data-raw/AMR_latest.tar.gz and b/data-raw/AMR_latest.tar.gz differ
diff --git a/docs/404.html b/docs/404.html
index c10270ff..8467be66 100644
--- a/docs/404.html
+++ b/docs/404.html
@@ -81,7 +81,7 @@
NEWS.md
-