diff --git a/.github/workflows/rpc-integration-tests.yml b/.github/workflows/rpc-integration-tests.yml
index 338544a54c..f2f4f6cbf0 100644
--- a/.github/workflows/rpc-integration-tests.yml
+++ b/.github/workflows/rpc-integration-tests.yml
@@ -33,7 +33,7 @@ jobs:
       - name: Checkout RPC Tests Repository & Install Requirements
         run: |
           rm -rf ${{runner.workspace}}/rpc-tests
-          git -c advice.detachedHead=false clone --depth 1 --branch v1.28.0 https://github.com/erigontech/rpc-tests ${{runner.workspace}}/rpc-tests
+          git -c advice.detachedHead=false clone --depth 1 --branch v1.29.0 https://github.com/erigontech/rpc-tests ${{runner.workspace}}/rpc-tests
           cd ${{runner.workspace}}/rpc-tests
           pip3 install -r requirements.txt --break-system-packages
 
diff --git a/silkworm/rpc/commands/debug_api.cpp b/silkworm/rpc/commands/debug_api.cpp
index d885145e81..1782e7a68c 100644
--- a/silkworm/rpc/commands/debug_api.cpp
+++ b/silkworm/rpc/commands/debug_api.cpp
@@ -708,7 +708,7 @@ Task<void> DebugRpcApi::handle_debug_get_raw_block(const nlohmann::json& request
         reply = make_json_content(request, silkworm::to_hex(encoded_block, true));
     } catch (const std::invalid_argument& iv) {
         SILK_ERROR << "exception: " << iv.what() << " processing request: " << request.dump();
-        reply = make_json_error(request, kInvalidParams, iv.what());
+        reply = make_json_error(request, kServerError, iv.what());
     } catch (const std::exception& e) {
         SILK_ERROR << "exception: " << e.what() << " processing request: " << request.dump();
         reply = make_json_error(request, kInternalError, e.what());
@@ -740,14 +740,14 @@ Task<void> DebugRpcApi::handle_debug_get_raw_header(const nlohmann::json& reques
         const auto block_hash = co_await chain_storage->read_canonical_header_hash(block_num);
         const auto header = co_await chain_storage->read_header(block_num, block_hash->bytes);
         if (!header) {
-            throw std::invalid_argument("header " + std::to_string(block_num) + " not found");
+            throw std::invalid_argument("header not found");
         }
         Bytes encoded_header;
         rlp::encode(encoded_header, *header);
         reply = make_json_content(request, silkworm::to_hex(encoded_header, true));
     } catch (const std::invalid_argument& iv) {
         SILK_ERROR << "exception: " << iv.what() << " processing request: " << request.dump();
-        reply = make_json_error(request, kInvalidParams, iv.what());
+        reply = make_json_error(request, kServerError, iv.what());
     } catch (const std::exception& e) {
         SILK_ERROR << "exception: " << e.what() << " processing request: " << request.dump();
         reply = make_json_error(request, kInternalError, e.what());
@@ -783,7 +783,7 @@ Task<void> DebugRpcApi::handle_debug_get_raw_transaction(const nlohmann::json& r
         reply = make_json_content(request, silkworm::to_hex(rlp, true));
     } catch (const std::invalid_argument& iv) {
         SILK_WARN << "invalid_argument: " << iv.what() << " processing request: " << request.dump();
-        reply = make_json_error(request, kInvalidParams, iv.what());
+        reply = make_json_error(request, kServerError, iv.what());
     } catch (const std::exception& e) {
         SILK_ERROR << "exception: " << e.what() << " processing request: " << request.dump();
         reply = make_json_error(request, kInternalError, e.what());