diff --git a/Cargo.lock b/Cargo.lock
index a99af563..676ece22 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -641,9 +641,9 @@ checksum = "cd179ae861f0c2e53da70d892f5f3029f9594be0c41dc5269cd371691b1dc2f9"
 
 [[package]]
 name = "hyper"
-version = "0.13.3"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7b15203263d1faa615f9337d79c1d37959439dc46c2b4faab33286fadc2a1c5"
+checksum = "ed6081100e960d9d74734659ffc9cc91daf1c0fc7aceb8eaa94ee1a3f5046f2e"
 dependencies = [
  "bytes",
  "futures-channel",
diff --git a/zebrad/Cargo.toml b/zebrad/Cargo.toml
index 53874686..ca8737bd 100644
--- a/zebrad/Cargo.toml
+++ b/zebrad/Cargo.toml
@@ -21,7 +21,7 @@ tracing = "0.1"
 tracing-futures = "0.2"
 tracing-log = "0.1"
 
-hyper = "0.13.3"
+hyper = "0.13.4"
 
 tower = "0.3"