diff --git a/lib/src/bulma-color-tools.ts b/lib/src/bulma-color-tools.ts
index eb6955b..5236041 100644
--- a/lib/src/bulma-color-tools.ts
+++ b/lib/src/bulma-color-tools.ts
@@ -1,4 +1,4 @@
-import * as Color from 'color'
+import Color from 'color'
 import { Hsl, Rgb, Hex, ColorDef, NameValueColor } from './types'
 
 function lightness(color: Color) {
diff --git a/lib/src/fs-helper.ts b/lib/src/fs-helper.ts
index c0f32b6..e72ecf2 100644
--- a/lib/src/fs-helper.ts
+++ b/lib/src/fs-helper.ts
@@ -1,5 +1,5 @@
 import { promises as fsp } from 'fs'
-import * as mkdirp from 'mkdirp'
+import mkdirp from 'mkdirp'
 import * as path from 'path'
 
 
diff --git a/lib/tsconfig.json b/lib/tsconfig.json
index 0ac3e44..38c613a 100644
--- a/lib/tsconfig.json
+++ b/lib/tsconfig.json
@@ -10,7 +10,8 @@
     "noImplicitAny": true,
     "lib": ["es2019", "dom"],
     "downlevelIteration": true,
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "esModuleInterop": true
   },
   "include": ["./src/**/*"],
   "exclude": ["node_modules", "dist", "**/__mocks__/**/*", "./src/**/*.test.ts"]
diff --git a/lib/tsconfig.test.json b/lib/tsconfig.test.json
index 4824a57..ba14053 100644
--- a/lib/tsconfig.test.json
+++ b/lib/tsconfig.test.json
@@ -8,7 +8,8 @@
     "moduleResolution": "node",
     "target": "es2015",
     "noImplicitAny": true,
-    "downlevelIteration": true
+    "downlevelIteration": true,
+    "esModuleInterop": true
   },
   "include": ["./src/**/*"],
   "exclude": ["node_modules", "dist"]