diff --git a/.github/scripts/renovate-releasenotes.sh b/.github/scripts/renovate-releasenotes.sh
index 834018b3..0c293fd2 100755
--- a/.github/scripts/renovate-releasenotes.sh
+++ b/.github/scripts/renovate-releasenotes.sh
@@ -19,7 +19,7 @@ if [ $# -ge 1 ] && [ -n "$1" ]; then
         printf >&2 "File %s does not exist.\n" "${chart_file}"
         exit 1
     fi
-    cd $root
+    cd "${root}"
 
     if [ -z "$DEFAULT_BRANCH" ]; then
       DEFAULT_BRANCH=$(git remote show origin | awk '/HEAD branch/ {print $NF}')
@@ -28,23 +28,24 @@ if [ $# -ge 1 ] && [ -n "$1" ]; then
     printf "Updating changelog annotation for chart %s\n" "$root"
 
     # Loop over all dependencies in current chart version
-    NEW_DEPENDENCIES=$(cat Chart.yaml | yq e '.dependencies[].name' -P - | LC_ALL=C sort)
-    OLD_DEPENDENCIES=$(git show origin/$DEFAULT_BRANCH:./Chart.yaml | yq e '.dependencies[].name' -P - | LC_ALL=C sort)
+    NEW_DEPENDENCIES=()
+    while IFS='' read -r line; do NEW_DEPENDENCIES+=("$line"); done < <(yq e '.dependencies[].name' -P Chart.yaml | LC_ALL=C sort)
+    OLD_DEPENDENCIES=$(git show "origin/$DEFAULT_BRANCH:./Chart.yaml" | yq e '.dependencies[].name' -P - | LC_ALL=C sort)
 
     tmpfile=$(mktemp)
     trap 'rm -f "$tmpfile"' EXIT
 
-    for DEP_NAME in ${NEW_DEPENDENCIES[@]}
+    for DEP_NAME in "${NEW_DEPENDENCIES[@]}"
     do
-      NEW_VERSION=$(cat Chart.yaml | yq e ".dependencies[] | select(.name == \"$DEP_NAME\") | .version" -P -)
-      OLD_VERSION=$(git show origin/$DEFAULT_BRANCH:./Chart.yaml | yq e ".dependencies[] | select(.name == \"$DEP_NAME\") | .version" -P -)
+      NEW_VERSION=$(yq e ".dependencies[] | select(.name == \"$DEP_NAME\") | .version" -P Chart.yaml)
+      OLD_VERSION=$(git show "origin/$DEFAULT_BRANCH:./Chart.yaml" | yq e ".dependencies[] | select(.name == \"$DEP_NAME\") | .version" -P -)
       if [ "${NEW_VERSION}" != "${OLD_VERSION}" ]; then
-        printf "%s\n" "- kind: changed" >> $tmpfile
-        printf "  description: Upgraded \`%s\` chart dependency to version \`%s\`.\n" "${DEP_NAME}" "${NEW_VERSION}" >> $tmpfile
+        printf "%s\n" "- kind: changed" >> "${tmpfile}"
+        printf "  description: Upgraded \`%s\` chart dependency to version \`%s\`.\n" "${DEP_NAME}" "${NEW_VERSION}" >> "${tmpfile}"
       fi
     done
 
-    yq eval-all --inplace 'select(fileIndex == 0).annotations."artifacthub.io/changes" = (select(fileIndex == 1) | to_yaml) | select(fileIndex==0)' Chart.yaml $tmpfile
+    yq eval-all --inplace 'select(fileIndex == 0).annotations."artifacthub.io/changes" = (select(fileIndex == 1) | to_yaml) | select(fileIndex==0)' Chart.yaml "${tmpfile}"
 else
     printf >&2 "%s\n" "No chart folder has been specified."
     exit 1