diff --git a/package-lock.json b/package-lock.json
index 93e2a44..6e228a6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1473,18 +1473,7 @@
     "node_modules/@nostrify/nostrify": {
       "version": "0.47.1",
       "resolved": "https://registry.npmjs.org/@nostrify/nostrify/-/nostrify-0.47.1.tgz",
-      "integrity": "sha512-8jdAeKIyyDK/UQN92WgrQn9+B067HYcjfW35TpIjNLAT9qYe+KYFHaC9O6PD+I1DvLHziJMxk4Q18Fu4fqOiAQ==",
-      "dependencies": {
-        "@nostrify/types": "0.36.7",
-        "@scure/base": "^1.2.6",
-        "@std/encoding": "npm:@jsr/std__encoding@^0.224.1",
-        "@types/node": "^24.1.0",
-        "lru-cache": "^10.2.0",
-        "nostr-tools": "^2.13.0",
-        "websocket-ts": "^2.2.1",
-        "ws": "^8.18.3",
-        "zod": "^3.23.8"
-      }
+      "integrity": "sha512-8jdAeKIyyDK/UQN92WgrQn9+B067HYcjfW35TpIjNLAT9qYe+KYFHaC9O6PD+I1DvLHziJMxk4Q18Fu4fqOiAQ=="
     },
     "node_modules/@nostrify/nostrify/node_modules/@scure/base": {
       "version": "1.2.6",
diff --git a/package.json b/package.json
index 6a5431d..c2d8ff2 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "@noble/curves": "^2.0.1",
     "@noble/hashes": "^2.0.1",
     "@nostrify/nostrify": "^0.47.1",
-    "@nostrify/react": "^0.2.17",
+    "@nostrify/react": "0.2.17",
     "@radix-ui/react-accordion": "^1.2.0",
     "@radix-ui/react-alert-dialog": "^1.1.1",
     "@radix-ui/react-aspect-ratio": "^1.1.0",
@@ -89,7 +89,7 @@
     "lucide-react": "^0.462.0",
     "ngeohash": "^0.6.3",
     "nostr-signer-capacitor-plugin": "github:coracle-social/nostr-signer-capacitor-plugin#main",
-    "nostr-tools": "^2.13.0",
+    "nostr-tools": "2.13.0",
     "npubcash-sdk": "^0.2.0",
     "qrcode": "^1.5.4",
     "react": "^18.3.1",
diff --git a/src/hooks/usePurchasePro.ts b/src/hooks/usePurchasePro.ts
index c91cb9a..a6e6e13 100644
--- a/src/hooks/usePurchasePro.ts
+++ b/src/hooks/usePurchasePro.ts
@@ -16,7 +16,6 @@
 
 import { useCallback, useState } from 'react';
 import { useNostr } from '@nostrify/react';
-import { nip57 } from 'nostr-tools';
 import { useCurrentUser } from '@/hooks/useCurrentUser';
 import { useNWC } from '@/hooks/useNWCContext';
 import { useWallet } from '@/hooks/useWallet';
@@ -132,16 +131,22 @@ export function usePurchasePro() {
         let invoice: string;
 
         if (providerPubkey) {
-          const zapRequest = nip57.makeZapRequest({
-            profile: PLATFORM_PUBKEY,
-            event: null,
-            amount: amountMsats,
-            relays,
-            comment,
-          });
-          // Tag the purchase so verification can read tier + expiry from the receipt.
-          zapRequest.tags.push(['pro-tier', tier.id]);
-          zapRequest.tags.push(['pro-expiry', String(expiry)]);
+          // Build the NIP-57 zap request event directly (profile zap, no event
+          // target). Constructed by hand rather than via nip57.makeZapRequest so
+          // we're not coupled to that helper's changing type signature.
+          const zapRequest = {
+            kind: 9734,
+            content: comment,
+            created_at: Math.floor(Date.now() / 1000),
+            tags: [
+              ['relays', ...relays],
+              ['amount', String(amountMsats)],
+              ['p', PLATFORM_PUBKEY],
+              // Tag the purchase so verification can read tier + expiry from the receipt.
+              ['pro-tier', tier.id],
+              ['pro-expiry', String(expiry)],
+            ] as string[][],
+          };
           const signed = await user.signer.signEvent(zapRequest);
           invoice = await getZapInvoiceFromLightningAddress({
             lightningAddress: PRO_LIGHTNING_ADDRESS,
diff --git a/src/hooks/useZaps.ts b/src/hooks/useZaps.ts
index ec16d45..0677559 100644
--- a/src/hooks/useZaps.ts
+++ b/src/hooks/useZaps.ts
@@ -192,22 +192,35 @@ export function useZaps(
         return;
       }
 
-      // Create zap request - use appropriate event format based on kind
-      // For addressable events (30000-39999), pass the object to get 'a' tag
-      // For all other events, pass the ID string to get 'e' tag
-      const event = (actualTarget.kind >= 30000 && actualTarget.kind < 40000)
-        ? actualTarget
-        : actualTarget.id;
-
       const zapAmount = amount * 1000; // convert to millisats
 
-      const zapRequest = nip57.makeZapRequest({
-        profile: actualTarget.pubkey,
-        event: event,
-        amount: zapAmount,
-        relays: config.relayMetadata.relays.map(r => r.url),
-        comment
-      });
+      // Build the NIP-57 zap request event directly. We construct it by hand
+      // (rather than nip57.makeZapRequest) so we're not coupled to that helper's
+      // changing type signature across nostr-tools versions, and so we can emit
+      // the correct target tag:
+      //   - addressable events (30000-39999) → 'a' tag (kind:pubkey:dTag)
+      //   - all other events                 → 'e' tag (event id)
+      const isAddressable =
+        actualTarget.kind >= 30000 && actualTarget.kind < 40000;
+
+      const zapTags: string[][] = [
+        ['relays', ...config.relayMetadata.relays.map(r => r.url)],
+        ['amount', String(zapAmount)],
+        ['p', actualTarget.pubkey],
+      ];
+      if (isAddressable) {
+        const dTag = actualTarget.tags.find(([n]) => n === 'd')?.[1] ?? '';
+        zapTags.push(['a', `${actualTarget.kind}:${actualTarget.pubkey}:${dTag}`]);
+      } else {
+        zapTags.push(['e', actualTarget.id]);
+      }
+
+      const zapRequest = {
+        kind: 9734,
+        content: comment ?? '',
+        tags: zapTags,
+        created_at: Math.floor(Date.now() / 1000),
+      };
 
       // Sign the zap request (but don't publish to relays - only send to LNURL endpoint)
       if (!user.signer) {