diff --git a/Cargo.toml b/Cargo.toml
index 7e7c056..4515d3d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ kubernetes_proxy = { path = "proxy" }
 
 [dev-dependencies]
 failure = "0.1"
-futures = "0.1.21"
+futures = "0.3.21"
 hyper = "0.12"
 hyper-tls = "0.3"
 log = "0.4"
diff --git a/holding/Cargo.toml b/holding/Cargo.toml
index 25b2300..763604e 100644
--- a/holding/Cargo.toml
+++ b/holding/Cargo.toml
@@ -23,7 +23,7 @@ serde_derive = "1.0"
 serde_json = "1.0"
 serde_yaml = "0.8"
 serde_urlencoded = "0.7"
-futures = "0.1.21"
+futures = "0.3.21"
 tokio = "0.1.7"
 tokio-core = "0.1.18"
 failure = "0.1.8"