diff --git a/hack/.shellcheck_failures b/hack/.shellcheck_failures
index 249f1b7ff4..8cab139e4f 100644
--- a/hack/.shellcheck_failures
+++ b/hack/.shellcheck_failures
@@ -23,8 +23,6 @@
 ./hack/lib/version.sh
 ./hack/make-rules/make-help.sh
 ./hack/make-rules/test.sh
-./hack/make-rules/update.sh
-./hack/make-rules/verify.sh
 ./hack/pin-dependency.sh
 ./hack/test-integration.sh
 ./hack/update-vendor.sh
diff --git a/hack/make-rules/update.sh b/hack/make-rules/update.sh
index a1f8787cba..5b45b2c6f6 100755
--- a/hack/make-rules/update.sh
+++ b/hack/make-rules/update.sh
@@ -19,7 +19,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
 # If called directly, exit.
@@ -32,10 +32,6 @@ fi
 
 SILENT=${SILENT:-true}
 ALL=${FORCE_ALL:-false}
-V=""
-if [[ "${SILENT}" != "true" ]]; then
-	V="-v"
-fi
 
 trap 'exit 1' SIGINT
 
@@ -59,10 +55,10 @@ BASH_TARGETS="
 	update-gofmt"
 
 for t in ${BASH_TARGETS}; do
-	echo -e "${color_yellow}Running ${t}${color_norm}"
+	echo -e "${color_yellow:?}Running ${t}${color_norm:?}"
 	if ${SILENT} ; then
 		if ! bash "${KUBE_ROOT}/hack/${t}.sh" 1> /dev/null; then
-			echo -e "${color_red}Running ${t} FAILED${color_norm}"
+			echo -e "${color_red:?}Running ${t} FAILED${color_norm}"
 			if ! ${ALL}; then
 				exit 1
 			fi
@@ -77,4 +73,4 @@ for t in ${BASH_TARGETS}; do
 	fi
 done
 
-echo -e "${color_green}Update scripts completed successfully${color_norm}"
+echo -e "${color_green:?}Update scripts completed successfully${color_norm}"
diff --git a/hack/make-rules/verify.sh b/hack/make-rules/verify.sh
index 7e92b4f818..9418ce8cf7 100755
--- a/hack/make-rules/verify.sh
+++ b/hack/make-rules/verify.sh
@@ -18,7 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../..
 source "${KUBE_ROOT}/hack/lib/util.sh"
 
 # If KUBE_JUNIT_REPORT_DIR is unset, and ARTIFACTS is set, then have them match.
@@ -80,13 +80,13 @@ QUICK_PATTERNS+=(
   "verify-test-owners.sh"
 )
 
-EXCLUDED_CHECKS=$(ls ${EXCLUDED_PATTERNS[@]/#/${KUBE_ROOT}\/hack\/} 2>/dev/null || true)
-QUICK_CHECKS=$(ls ${QUICK_PATTERNS[@]/#/${KUBE_ROOT}\/hack\/} 2>/dev/null || true)
+while IFS='' read -r line; do EXCLUDED_CHECKS+=("$line"); done < <(ls "${EXCLUDED_PATTERNS[@]/#/${KUBE_ROOT}\/hack\/}" 2>/dev/null || true)
+while IFS='' read -r line; do QUICK_CHECKS+=("$line"); done < <(ls "${QUICK_PATTERNS[@]/#/${KUBE_ROOT}\/hack\/}" 2>/dev/null || true)
 TARGET_LIST=()
 IFS=" " read -r -a TARGET_LIST <<< "${WHAT:-}"
 
 function is-excluded {
-  for e in ${EXCLUDED_CHECKS[@]}; do
+  for e in "${EXCLUDED_CHECKS[@]}"; do
     if [[ $1 -ef "${e}" ]]; then
       return
     fi
@@ -95,7 +95,7 @@ function is-excluded {
 }
 
 function is-quick {
-  for e in ${QUICK_CHECKS[@]}; do
+  for e in "${QUICK_CHECKS[@]}"; do
     if [[ $1 -ef "${e}" ]]; then
       return
     fi
@@ -138,9 +138,9 @@ FAILED_TESTS=()
 
 function print-failed-tests {
   echo -e "========================"
-  echo -e "${color_red}FAILED TESTS${color_norm}"
+  echo -e "${color_red:?}FAILED TESTS${color_norm:?}"
   echo -e "========================"
-  for t in ${FAILED_TESTS[@]}; do
+  for t in "${FAILED_TESTS[@]}"; do
       echo -e "${color_red}${t}${color_norm}"
   done
 }
@@ -150,10 +150,11 @@ function run-checks {
   local -r runner=$2
 
   local t
-  for t in $(ls ${pattern})
+  for t in ${pattern}
   do
-    local check_name="$(basename "${t}")"
-    if [[ ! -z ${WHAT:-} ]]; then
+    local check_name
+    check_name="$(basename "${t}")"
+    if [[ -n ${WHAT:-} ]]; then
       if ! is-explicitly-chosen "${check_name}"; then
         continue
       fi
@@ -168,15 +169,16 @@ function run-checks {
       fi
     fi
     echo -e "Verifying ${check_name}"
-    local start=$(date +%s)
+    local start
+    start=$(date +%s)
     run-cmd "${runner}" "${t}" && tr=$? || tr=$?
-    local elapsed=$(($(date +%s) - ${start}))
+    local elapsed=$(($(date +%s) - start))
     if [[ ${tr} -eq 0 ]]; then
-      echo -e "${color_green}SUCCESS${color_norm}  ${check_name}\t${elapsed}s"
+      echo -e "${color_green:?}SUCCESS${color_norm}  ${check_name}\t${elapsed}s"
     else
       echo -e "${color_red}FAILED${color_norm}   ${check_name}\t${elapsed}s"
       ret=1
-      FAILED_TESTS+=(${t})
+      FAILED_TESTS+=("${t}")
     fi
   done
 }
@@ -190,7 +192,7 @@ function missing-target-checks {
   do
     [[ -z "${v}" ]] && continue
       
-    FAILED_TESTS+=(${v})
+    FAILED_TESTS+=("${v}")
     ret=1
   done
 }