diff --git a/NAMESPACE b/NAMESPACE
index c9601518..df89ee2c 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -55,7 +55,6 @@ import(RSQLite)
 import(dbplyr)
 import(lubridate)
 import(tidyverse)
-import(utils)
 importFrom(R6,R6Class)
 importFrom(methods,setGeneric)
 importFrom(rlang,":=")
diff --git a/R/SCDB-package.R b/R/SCDB-package.R
index b1a55489..65bf5863 100644
--- a/R/SCDB-package.R
+++ b/R/SCDB-package.R
@@ -3,8 +3,3 @@
 
 #' @import RSQLite
 NULL
-
-#' @import utils
-utils::globalVariables(".")
-utils::globalVariables("NULLIF")
-utils::globalVariables("CONCAT_WS")
diff --git a/R/digest_to_checksum.R b/R/digest_to_checksum.R
index 5ca8d61b..512a62d6 100644
--- a/R/digest_to_checksum.R
+++ b/R/digest_to_checksum.R
@@ -46,6 +46,9 @@ digest_to_checksum_internal <- function(.data, col) {
   UseMethod("digest_to_checksum_internal")
 }
 
+# Resolve visible binding warning for SQL commands
+utils::globalVariables(c("CONVERT", "VARCHAR"))
+
 #' @noRd
 `digest_to_checksum_internal.tbl_Microsoft SQL Server` <- function(.data, col) {
   con <- dbplyr::remote_con(.data)
diff --git a/R/unite.tbl_dbi.R b/R/unite.tbl_dbi.R
index 129f8eae..d0bcb3b1 100644
--- a/R/unite.tbl_dbi.R
+++ b/R/unite.tbl_dbi.R
@@ -1,3 +1,6 @@
+# Resolve visible binding warning for SQL commands
+utils::globalVariables(c("NULLIF", "CONCAT_WS"))
+
 #' tidyr::unite for tbl_dbi
 #'
 #' @inheritParams tidyr::unite