diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0c4c73e..571eaf7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v2.1.1 (1/27/2019)
+
+- Fix parsing `package.json` that does not have either `devDependencies` or `dependencies` at all.
+
 ## v2.1.0 (1/27/2019)
 
 - Allow disabling treating native NodeJS modules as dependencies.
diff --git a/package-lock.json b/package-lock.json
index 72410a8..7a61361 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "tslint-import-group-ordering",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index ac19d1d..dc98cfa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tslint-import-group-ordering",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "TSLint rule for ordering import groups",
   "main": "tslint-import-group-ordering.json",
   "scripts": {
diff --git a/src/utils/get-dependencies-reg-exps.ts b/src/utils/get-dependencies-reg-exps.ts
index 8b6c239..8774c3b 100644
--- a/src/utils/get-dependencies-reg-exps.ts
+++ b/src/utils/get-dependencies-reg-exps.ts
@@ -32,8 +32,10 @@ function readDependenciesFromPackageJson() {
   try {
     const parsedPackageJson = JSON.parse(packageJsonContents);
 
-    const dependencies = Object.keys(parsedPackageJson.dependencies);
-    const devDependencies = Object.keys(parsedPackageJson.devDependencies);
+    const dependencies = Object.keys(parsedPackageJson.dependencies || {});
+    const devDependencies = Object.keys(
+      parsedPackageJson.devDependencies || {}
+    );
 
     return [...dependencies, ...devDependencies];
   } catch (error) {