1 files changed, 5 insertions, 1 deletions
diff --git a/node_modules/postcss-loader/dist/index.js b/node_modules/postcss-loader/dist/index.js
index d4c1c91b..c71ab296 100644
--- a/node_modules/postcss-loader/dist/index.js
+++ b/node_modules/postcss-loader/dist/index.js
@@ -106,7 +106,11 @@ async function loader(content, sourceMap, meta) {
             // Nothing
           }
           if (pkg) {
-            if (!pkg.dependencies.postcss && !pkg.devDependencies.postcss) {
+            const {
+              dependencies = {},
+              devDependencies = {}
+            } = pkg;
+            if (!dependencies.postcss && !devDependencies.postcss) {
               this.emitWarning(new Error("Add postcss as project dependency. postcss is not a peer dependency for postcss-loader. " + "Use `npm install postcss` or `yarn add postcss`"));
             } else {
               hasExplicitDependencyOnPostCSS = true;