diff --git a/.changeset/clean-cheetahs-speak.md b/.changeset/clean-cheetahs-speak.md
new file mode 100644
index 00000000..d193d2c7
--- /dev/null
+++ b/.changeset/clean-cheetahs-speak.md
@@ -0,0 +1,5 @@
+---
+'@reservoir0x/relay-sdk': patch
+---
+
+Fix internal txhash chain id