diff --git a/Cargo.lock b/Cargo.lock
index 7f301e91..d06b00df 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -146,11 +146,6 @@ name = "dtoa"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "either"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "encoding_rs"
 version = "0.7.2"
@@ -195,30 +190,6 @@ name = "futures"
 version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "futures"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures-async-runtime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-channel 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-executor 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-io 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-sink 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-stable 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-util 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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-
-[[package]]
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-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "futures-stable 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "futures-await"
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@@ -244,74 +215,6 @@ name = "futures-await-await-macro"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "futures-channel"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures-core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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-
-[[package]]
-name = "futures-core"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
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-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
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-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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-
-[[package]]
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-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "futures-core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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-
-[[package]]
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-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "futures-sink 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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-
 [[package]]
 name = "iovec"
 version = "0.1.2"
@@ -601,13 +504,13 @@ dependencies = [
 
 [[package]]
 name = "rssbot"
-version = "1.4.2"
+version = "1.4.3"
 dependencies = [
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  "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
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  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1006,25 +909,15 @@ dependencies = [
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-"checksum either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3be565ca5c557d7f59e7cfcf1844f9e3033650c929c6566f511e8005f205c1d0"
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diff --git a/Cargo.toml b/Cargo.toml
index a8648a68..6fcedc63 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
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-version = "1.4.2"
+version = "1.4.3"
 authors = ["iovxw <iovxw@outlook.com>"]
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 readme = "README.md"