[kvdb-web] bump futures-preview to 0.3.0-alpha.18
@@ -13,7 +13,7 @@ wasm-bindgen = "0.2.49"
js-sys = "0.3.26"
kvdb = { version = "0.1", path = "../kvdb" }
kvdb-memorydb = { version = "0.1", path = "../kvdb-memorydb" }
-futures-preview = "0.3.0-alpha.17"
+futures-preview = "0.3.0-alpha.18"
log = "0.4.8"
send_wrapper = "0.2.0"
