diff --git a/scripts/app_config/configure_stack_duo.sh b/scripts/app_config/configure_stack_duo.sh
index 502e1a056..7d6bae012 100755
--- a/scripts/app_config/configure_stack_duo.sh
+++ b/scripts/app_config/configure_stack_duo.sh
@@ -14,14 +14,11 @@ NEW_PUBSPEC_NAME="stackduo"
 PUBSPEC_FILE="${APP_PROJECT_ROOT_DIR}/pubspec.yaml"
 
 # String replacements.
-if [[ "$(uname)" == 'Darwin' ]]; then
-  # macos specific sed
-  sed -i '' "s/name: PLACEHOLDER/name: ${NEW_PUBSPEC_NAME}/g" "${PUBSPEC_FILE}"
-  sed -i '' "s/description: PLACEHOLDER/description: ${NEW_NAME}/g" "${PUBSPEC_FILE}"
-else
-  sed -i "s/name: PLACEHOLDER/name: ${NEW_PUBSPEC_NAME}/g" "${PUBSPEC_FILE}"
-  sed -i "s/description: PLACEHOLDER/description: ${NEW_NAME}/g" "${PUBSPEC_FILE}"
-fi
+sed -i.bak \
+  -e "s/name: PLACEHOLDER/name: ${NEW_PUBSPEC_NAME}/g" \
+  -e "s/description: PLACEHOLDER/description: ${NEW_NAME}/g" \
+  "${PUBSPEC_FILE}"
+rm -f "${PUBSPEC_FILE}.bak"
 
 dart "${APP_PROJECT_ROOT_DIR}/tool/process_pubspec_deps.dart" \
       "${PUBSPEC_FILE}" \
diff --git a/scripts/app_config/configure_stack_wallet.sh b/scripts/app_config/configure_stack_wallet.sh
index 03d956269..bf3d6c662 100755
--- a/scripts/app_config/configure_stack_wallet.sh
+++ b/scripts/app_config/configure_stack_wallet.sh
@@ -14,14 +14,11 @@ NEW_PUBSPEC_NAME="stackwallet"
 PUBSPEC_FILE="${APP_PROJECT_ROOT_DIR}/pubspec.yaml"
 
 # String replacements.
-if [[ "$(uname)" == 'Darwin' ]]; then
-  # macos specific sed
-  sed -i '' "s/name: PLACEHOLDER/name: ${NEW_PUBSPEC_NAME}/g" "${PUBSPEC_FILE}"
-  sed -i '' "s/description: PLACEHOLDER/description: ${NEW_NAME}/g" "${PUBSPEC_FILE}"
-else
-  sed -i "s/name: PLACEHOLDER/name: ${NEW_PUBSPEC_NAME}/g" "${PUBSPEC_FILE}"
-  sed -i "s/description: PLACEHOLDER/description: ${NEW_NAME}/g" "${PUBSPEC_FILE}"
-fi
+sed -i.bak \
+  -e "s/name: PLACEHOLDER/name: ${NEW_PUBSPEC_NAME}/g" \
+  -e "s/description: PLACEHOLDER/description: ${NEW_NAME}/g" \
+  "${PUBSPEC_FILE}"
+rm -f "${PUBSPEC_FILE}.bak"
 
 dart "${APP_PROJECT_ROOT_DIR}/tool/process_pubspec_deps.dart" \
       "${PUBSPEC_FILE}" \
diff --git a/scripts/app_config/platforms/macos/platform_config.sh b/scripts/app_config/platforms/macos/platform_config.sh
index c54ba32a6..dd71bc117 100755
--- a/scripts/app_config/platforms/macos/platform_config.sh
+++ b/scripts/app_config/platforms/macos/platform_config.sh
@@ -13,8 +13,17 @@ for (( i=0; i<=2; i++ )); do
 done
 
 # Configure macOS for Duo.
-sed -i '' "s/${APP_ID_PLACEHOLDER_CAMEL}/${NEW_APP_ID_CAMEL}/g" "${APP_PROJECT_ROOT_DIR}/${MAC_TF_0}"
-sed -i '' "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${MAC_TF_0}"
-sed -i '' "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${MAC_TF_1}"
-sed -i '' "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${MAC_TF_2}"
-sed -i '' "s/${APP_ID_PLACEHOLDER_SNAKE}/${NEW_APP_ID_SNAKE}/g" "${APP_PROJECT_ROOT_DIR}/${MAC_TF_2}"
+sed -i.bak \
+  -e "s/${APP_ID_PLACEHOLDER_CAMEL}/${NEW_APP_ID_CAMEL}/g" \
+  -e "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" \
+  "${APP_PROJECT_ROOT_DIR}/${MAC_TF_0}"
+rm -f "${APP_PROJECT_ROOT_DIR}/${MAC_TF_0}.bak"
+
+sed -i.bak "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${MAC_TF_1}"
+rm -f "${APP_PROJECT_ROOT_DIR}/${MAC_TF_1}.bak"
+
+sed -i.bak \
+  -e "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" \
+  -e "s/${APP_ID_PLACEHOLDER_SNAKE}/${NEW_APP_ID_SNAKE}/g" \
+  "${APP_PROJECT_ROOT_DIR}/${MAC_TF_2}"
+rm -f "${APP_PROJECT_ROOT_DIR}/${MAC_TF_2}.bak"
diff --git a/scripts/app_config/shared/update_version.sh b/scripts/app_config/shared/update_version.sh
index d056b9b73..11c1cbd8c 100755
--- a/scripts/app_config/shared/update_version.sh
+++ b/scripts/app_config/shared/update_version.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -x -e
 
@@ -34,13 +34,10 @@ if [ ! -f "$PUBSPEC_FILE" ]; then
     exit 1
 fi
 
-if [[ "$(uname)" == 'Darwin' ]]; then
-  # macos specific sed
-  sed -i '' "s/PLACEHOLDER_V/$VERSION/g" "${PUBSPEC_FILE}"
-  sed -i '' "s/PLACEHOLDER_B/$BUILD_NUMBER/g" "${PUBSPEC_FILE}"
-else
-  sed -i "s/PLACEHOLDER_V/$VERSION/g" "${PUBSPEC_FILE}"
-  sed -i "s/PLACEHOLDER_B/$BUILD_NUMBER/g" "${PUBSPEC_FILE}"
-fi
+sed -i.bak \
+  -e "s/PLACEHOLDER_V/$VERSION/g" \
+  -e "s/PLACEHOLDER_B/$BUILD_NUMBER/g" \
+  "${PUBSPEC_FILE}"
+rm -f "${PUBSPEC_FILE}.bak"
 
 echo "Updated $PUBSPEC_FILE with version: $VERSION and build number: $BUILD_NUMBER"