diff --git a/.changeset/advertise-nip-13-in-supported-nips.md b/.changeset/advertise-nip-13-in-supported-nips.md
new file mode 100644
index 00000000..00b43cdb
--- /dev/null
+++ b/.changeset/advertise-nip-13-in-supported-nips.md
@@ -0,0 +1,5 @@
+---
+"nostream": patch
+---
+
+fix: advertise NIP-13 (Proof of Work) support in `supportedNips`
diff --git a/package.json b/package.json
index df8dac50..8e412f66 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
     9,
     11,
     12,
+    13,
     14,
     15,
     16,