diff --git a/components/AdvancedColorPicker.tsx b/components/AdvancedColorPicker.tsx
index 1ec62dddc..9e692bc52 100644
--- a/components/AdvancedColorPicker.tsx
+++ b/components/AdvancedColorPicker.tsx
@@ -397,7 +397,7 @@ export default function AdvancedColorPicker({
           {hexError && (
             <p className="-mt-1.5 text-[10px] text-red-400 dark:text-red-500">{hexError}</p>
           )}
-          {eyedropperSupported === false && (
+          {eyedropperSupported ! && (
             <p className="-mt-1.5 text-[10px] text-amber-500 dark:text-amber-400">
               Eyedropper not supported in this browser
             </p>
diff --git a/context/TranslationContext.tsx b/context/TranslationContext.tsx
index d23d9549f..5dfaadf39 100644
--- a/context/TranslationContext.tsx
+++ b/context/TranslationContext.tsx
@@ -59,7 +59,7 @@ const getNestedValue = (
   obj: Record<string, unknown> | null | undefined,
   path: string
 ): string | undefined => {
-  if (!obj) return undefined;
+  if (!obj) return;
   const parts = path.split('.');
   let current: unknown = obj;
   for (const part of parts) {
diff --git a/utils/dateRange.ts b/utils/dateRange.ts
index a0063e656..72cfac568 100644
--- a/utils/dateRange.ts
+++ b/utils/dateRange.ts
@@ -59,7 +59,7 @@ export function formatDateRange(year?: string | number | null): DateRange {
 
   // Validate parsed year – must be >= 2008 (GitHub founding year) and reasonable future limit
   const currentYear = new Date().getUTCFullYear();
-  const isValidYear = !isNaN(fullYear) && fullYear >= 2008 && fullYear <= currentYear + 5;
+  const isValidYear = !Number.isNaN(fullYear) && fullYear >= 2008 && fullYear <= currentYear + 5;
 
   if (!isValidYear) {
     return getDefaultDateRange();