diff --git a/src/components/settings/PasswordUpdateDialog.tsx b/src/components/settings/PasswordUpdateDialog.tsx
index 59799c6f..328c8ff0 100644
--- a/src/components/settings/PasswordUpdateDialog.tsx
+++ b/src/components/settings/PasswordUpdateDialog.tsx
@@ -17,6 +17,8 @@ import { useToast } from '@/hooks/use-toast';
 import { supabase } from '@/integrations/supabase/client';
 import { Loader2, Shield, CheckCircle2 } from 'lucide-react';
 import { InputOTP, InputOTPGroup, InputOTPSlot } from '@/components/ui/input-otp';
+import { TurnstileCaptcha } from '@/components/auth/TurnstileCaptcha';
+import { useTheme } from '@/components/theme/ThemeProvider';
 
 const passwordSchema = z.object({
   currentPassword: z.string().min(1, 'Current password is required'),
@@ -39,12 +41,15 @@ type Step = 'password' | 'mfa' | 'success';
 
 export function PasswordUpdateDialog({ open, onOpenChange, onSuccess }: PasswordUpdateDialogProps) {
   const { toast } = useToast();
+  const { theme } = useTheme();
   const [step, setStep] = useState<Step>('password');
   const [loading, setLoading] = useState(false);
   const [nonce, setNonce] = useState<string>('');
   const [newPassword, setNewPassword] = useState<string>('');
   const [hasMFA, setHasMFA] = useState(false);
   const [totpCode, setTotpCode] = useState('');
+  const [captchaToken, setCaptchaToken] = useState<string>('');
+  const [captchaKey, setCaptchaKey] = useState(0);
 
   const form = useForm<PasswordFormData>({
     resolver: zodResolver(passwordSchema),
@@ -75,15 +80,32 @@ export function PasswordUpdateDialog({ open, onOpenChange, onSuccess }: Password
   };
 
   const onSubmit = async (data: PasswordFormData) => {
+    if (!captchaToken) {
+      toast({
+        title: 'CAPTCHA Required',
+        description: 'Please complete the CAPTCHA verification.',
+        variant: 'destructive'
+      });
+      return;
+    }
+
     setLoading(true);
     try {
       // Step 1: Reauthenticate with current password to get a nonce
       const { error: signInError } = await supabase.auth.signInWithPassword({
         email: (await supabase.auth.getUser()).data.user?.email || '',
-        password: data.currentPassword
+        password: data.currentPassword,
+        options: {
+          captchaToken
+        }
       });
       
-      if (signInError) throw signInError;
+      if (signInError) {
+        // Reset CAPTCHA on authentication failure
+        setCaptchaToken('');
+        setCaptchaKey(prev => prev + 1);
+        throw signInError;
+      }
 
       // Step 2: Generate nonce for secure password update
       const { data: sessionData } = await supabase.auth.getSession();
@@ -215,6 +237,8 @@ export function PasswordUpdateDialog({ open, onOpenChange, onSuccess }: Password
       setStep('password');
       form.reset();
       setTotpCode('');
+      setCaptchaToken('');
+      setCaptchaKey(prev => prev + 1);
     }
   };
 
@@ -279,11 +303,23 @@ export function PasswordUpdateDialog({ open, onOpenChange, onSuccess }: Password
                 )}
               </div>
 
+              <div className="space-y-2">
+                <TurnstileCaptcha
+                  key={captchaKey}
+                  onSuccess={setCaptchaToken}
+                  onError={() => setCaptchaToken('')}
+                  onExpire={() => setCaptchaToken('')}
+                  siteKey={import.meta.env.VITE_TURNSTILE_SITE_KEY}
+                  theme={theme === 'dark' ? 'dark' : 'light'}
+                  size="normal"
+                />
+              </div>
+
               <DialogFooter>
                 <Button type="button" variant="outline" onClick={handleClose} disabled={loading}>
                   Cancel
                 </Button>
-                <Button type="submit" disabled={loading}>
+                <Button type="submit" disabled={loading || !captchaToken}>
                   {loading && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
                   {hasMFA ? 'Continue' : 'Update Password'}
                 </Button>