diff --git a/src/hyper-light-card.test.ts b/src/hyper-light-card.test.ts
index a1b119e..7d3224f 100644
--- a/src/hyper-light-card.test.ts
+++ b/src/hyper-light-card.test.ts
@@ -21,7 +21,7 @@ describe('HyperLightCard', () => {
         },
       },
       callService: jest.fn(), // Mock the callService function
-    } as any;
+    } as unknown;
 
     // Set up the required config property
     card.setConfig({ entity: 'light.test_light' });
@@ -59,7 +59,7 @@ describe('HyperLightCard', () => {
 
     it('throws an error when no entity is provided', () => {
       expect(() => {
-        card.setConfig({} as any);
+        card.setConfig({} as unknown);
       }).toThrow('You need to define an entity');
     });
 
@@ -107,7 +107,7 @@ describe('HyperLightCard', () => {
           },
         },
         callService: jest.fn(),
-      } as any;
+      } as unknown;
 
       // Set the initial internal state
       card['_isOn'] = true; // Light is initially on
diff --git a/src/utils.ts b/src/utils.ts
index a542bd0..6b169ac 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -144,22 +144,22 @@ export function memoize<TArgs extends unknown[], TResult>(
 const isLoggingEnabled = process.env.NODE_ENV !== 'production'; // Disable logging in production by default
 
 export const log = {
-  debug: (...args: any[]) => {
+  debug: (...args: unknown[]): void => {
     if (isLoggingEnabled) {
       console.debug(...args);
     }
   },
-  log: (...args: any[]) => {
+  log: (...args: unknown[]): void => {
     if (isLoggingEnabled) {
       console.log(...args);
     }
   },
-  warn: (...args: any[]) => {
+  warn: (...args: unknown[]): void => {
     if (isLoggingEnabled) {
       console.warn(...args);
     }
   },
-  error: (...args: any[]) => {
+  error: (...args: unknown[]): void => {
     if (isLoggingEnabled) {
       console.error(...args);
     }