diff --git a/Cargo.toml b/Cargo.toml
index fc2e73c..9a61797 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ resolver = "2"
 members = ["program"]
 
 [workspace.metadata.cli]
-solana = "2.1.0"
+solana = "2.1.9"
 
 # Specify Rust toolchains for rustfmt, clippy, and build.
 # Any unprovided toolchains default to stable.
diff --git a/clients/js/src/utils.ts b/clients/js/src/utils.ts
index 4548c7a..cb6175f 100644
--- a/clients/js/src/utils.ts
+++ b/clients/js/src/utils.ts
@@ -118,6 +118,13 @@ async function getProgramAuthorityForLoaderV3(
   const programDataAccount = await fetchEncodedAccount(rpc, programData);
   assertAccountExists(programDataAccount);
 
+  // Ensure the program data account is not executable.
+  if (programDataAccount.executable) {
+    throw Error(
+      'The data account associated with the program account must not be executable'
+    );
+  }
+
   // Decode the program and program data accounts.
   const [programDecoder, programDataDecoder] = getLoaderV3Decoders();
   const programAccountData = programDecoder.decode(programAccount.data);