diff --git a/pyproject.toml b/pyproject.toml
index 8718d44..8ce34d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ evm = [
 svm = [
     "x402[svm]>=2.21.0",
     # x402 2.21 ExactSvmScheme imports solana.rpc.api, removed in solana 0.40.
-    "solana>=0.36.0,<0.41",
+    "solana>=0.36.0,<0.42",
 ]
 tvm = [
     "x402[tvm]>=2.21.0",