diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3440ca236..22acc4090 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Initialized the input properties in the _FIRE_ calculator
 - Removed the deprecated public _Stripe_ key
+- Upgraded `stripe` from version `18.5.0` to `20.1.0`
 
 ### Fixed
 
diff --git a/apps/api/src/app/subscription/subscription.service.ts b/apps/api/src/app/subscription/subscription.service.ts
index 8dc7d27f1..b38b07bb4 100644
--- a/apps/api/src/app/subscription/subscription.service.ts
+++ b/apps/api/src/app/subscription/subscription.service.ts
@@ -35,7 +35,7 @@ export class SubscriptionService {
       this.stripe = new Stripe(
         this.configurationService.get('STRIPE_SECRET_KEY'),
         {
-          apiVersion: '2025-08-27.basil'
+          apiVersion: '2025-12-15.clover'
         }
       );
     }
diff --git a/libs/ui/src/lib/fire-calculator/fire-calculator.component.stories.ts b/libs/ui/src/lib/fire-calculator/fire-calculator.component.stories.ts
index e4cfa18ea..0872c2aac 100644
--- a/libs/ui/src/lib/fire-calculator/fire-calculator.component.stories.ts
+++ b/libs/ui/src/lib/fire-calculator/fire-calculator.component.stories.ts
@@ -44,8 +44,10 @@ type Story = StoryObj<GfFireCalculatorComponent>;
 
 export const Simple: Story = {
   args: {
+    annualInterestRate: 5,
     currency: 'USD',
     fireWealth: 50000,
-    locale: locale
+    locale: locale,
+    savingsRate: 1000
   }
 };
diff --git a/libs/ui/src/lib/fire-calculator/fire-calculator.component.ts b/libs/ui/src/lib/fire-calculator/fire-calculator.component.ts
index 655798b3d..6b0bc8dcb 100644
--- a/libs/ui/src/lib/fire-calculator/fire-calculator.component.ts
+++ b/libs/ui/src/lib/fire-calculator/fire-calculator.component.ts
@@ -77,16 +77,16 @@ import { FireCalculatorService } from './fire-calculator.service';
   templateUrl: './fire-calculator.component.html'
 })
 export class GfFireCalculatorComponent implements OnChanges, OnDestroy {
-  @Input() annualInterestRate: number;
+  @Input() annualInterestRate = 0;
   @Input() colorScheme: ColorScheme;
   @Input() currency: string;
   @Input() deviceType: string;
-  @Input() fireWealth: number;
+  @Input() fireWealth = 0;
   @Input() hasPermissionToUpdateUserSettings: boolean;
   @Input() locale = getLocale();
-  @Input() projectedTotalAmount: number;
+  @Input() projectedTotalAmount = 0;
   @Input() retirementDate: Date;
-  @Input() savingsRate: number;
+  @Input() savingsRate = 0;
 
   @Output() annualInterestRateChanged = new EventEmitter<number>();
   @Output() calculationCompleted =
diff --git a/package-lock.json b/package-lock.json
index 6512d2162..d1a228ade 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -84,7 +84,7 @@
         "passport-openidconnect": "0.1.2",
         "reflect-metadata": "0.2.2",
         "rxjs": "7.8.1",
-        "stripe": "18.5.0",
+        "stripe": "20.1.0",
         "svgmap": "2.14.0",
         "tablemark": "4.1.0",
         "twitter-api-v2": "1.27.0",
@@ -31464,18 +31464,18 @@
       }
     },
     "node_modules/stripe": {
-      "version": "18.5.0",
-      "resolved": "https://registry.npmjs.org/stripe/-/stripe-18.5.0.tgz",
-      "integrity": "sha512-Hp+wFiEQtCB0LlNgcFh5uVyKznpDjzyUZ+CNVEf+I3fhlYvh7rZruIg+jOwzJRCpy0ZTPMjlzm7J2/M2N6d+DA==",
+      "version": "20.1.0",
+      "resolved": "https://registry.npmjs.org/stripe/-/stripe-20.1.0.tgz",
+      "integrity": "sha512-o1VNRuMkY76ZCq92U3EH3/XHm/WHp7AerpzDs4Zyo8uE5mFL4QUcv/2SudWsSnhBSp4moO2+ZoGCZ7mT8crPmQ==",
       "license": "MIT",
       "dependencies": {
         "qs": "^6.11.0"
       },
       "engines": {
-        "node": ">=12.*"
+        "node": ">=16"
       },
       "peerDependencies": {
-        "@types/node": ">=12.x.x"
+        "@types/node": ">=16"
       },
       "peerDependenciesMeta": {
         "@types/node": {
diff --git a/package.json b/package.json
index 59a455ae1..b887010cd 100644
--- a/package.json
+++ b/package.json
@@ -128,7 +128,7 @@
     "passport-openidconnect": "0.1.2",
     "reflect-metadata": "0.2.2",
     "rxjs": "7.8.1",
-    "stripe": "18.5.0",
+    "stripe": "20.1.0",
     "svgmap": "2.14.0",
     "tablemark": "4.1.0",
     "twitter-api-v2": "1.27.0",