diff --git a/.github/workflows/check-devel.yaml b/.github/workflows/check-devel.yaml
index 994c511b..2829e08b 100644
--- a/.github/workflows/check-devel.yaml
+++ b/.github/workflows/check-devel.yaml
@@ -36,7 +36,7 @@ on:
   schedule:
     # run a schedule everyday at 1 AM.
     # this is to check that all dependencies are still available (see R/zzz.R)
-    cron:  '0 1 * * *'
+    - cron:  '0 1 * * *'
 
 name: check-devel
 
diff --git a/.github/workflows/check-release.yaml b/.github/workflows/check-release.yaml
index 43a68f7a..e004ffb3 100644
--- a/.github/workflows/check-release.yaml
+++ b/.github/workflows/check-release.yaml
@@ -34,7 +34,7 @@ on:
   schedule:
     # run a schedule everyday at 1 AM.
     # this is to check that all dependencies are still available (see R/zzz.R)
-    cron:  '0 1 * * *'
+    - cron:  '0 1 * * *'
 
 name: check-release
 
diff --git a/DESCRIPTION b/DESCRIPTION
index 22908e7f..3b9a92a4 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,5 +1,5 @@
 Package: AMR
-Version: 1.8.2.9019
+Version: 1.8.2.9020
 Date: 2022-10-18
 Title: Antimicrobial Resistance Data Analysis
 Description: Functions to simplify and standardise antimicrobial resistance (AMR)
diff --git a/NEWS.md b/NEWS.md
index 33bebca7..c55f1685 100755
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,4 +1,4 @@
-# AMR 1.8.2.9019
+# AMR 1.8.2.9020
 
 This version will eventually become v2.0! We're happy to reach a new major milestone soon!
 
diff --git a/R/add_custom_antimicrobials.R b/R/add_custom_antimicrobials.R
index 2a915d11..b8437803 100644
--- a/R/add_custom_antimicrobials.R
+++ b/R/add_custom_antimicrobials.R
@@ -124,7 +124,7 @@ add_custom_antimicrobials <- function(x) {
     }
     for (col in colnames(x)) {
       # assign new values
-      new_df[, col] <-  x[, col, drop = TRUE]
+      new_df[, col] <- x[, col, drop = TRUE]
     }
     AMR_env$AB_lookup <- unique(rbind(AMR_env$AB_lookup, new_df))
   } else {