diff --git a/.changeset/honest-teachers-judge.md b/.changeset/honest-teachers-judge.md
new file mode 100644
index 000000000..c4b0bc22b
--- /dev/null
+++ b/.changeset/honest-teachers-judge.md
@@ -0,0 +1,6 @@
+---
+'@reservoir0x/reservoir-sdk': patch
+'@reservoir0x/reservoir-kit-ui': patch
+---
+
+Add blast sepolia chain configuration