diff --git a/src/main/java/io/sui/jsonrpc/OkHttpJsonRpcClientProvider.java b/src/main/java/io/sui/jsonrpc/OkHttpJsonRpcClientProvider.java
index 6a8d7b6..c9c2b90 100644
--- a/src/main/java/io/sui/jsonrpc/OkHttpJsonRpcClientProvider.java
+++ b/src/main/java/io/sui/jsonrpc/OkHttpJsonRpcClientProvider.java
@@ -270,6 +270,13 @@ public void onResponse(@NotNull Call call, @NotNull Response response) {
                   future.complete(jsonRpc20Response);
                 } catch (Throwable throwable) {
                   future.completeExceptionally(throwable);
+                } finally {
+                  try {
+                    // close response
+                    response.close();
+                  } catch (Exception e) {
+                    LOGGER.warn("close response exception ..", e);
+                  }
                 }
               }
             });