diff --git a/Cargo.toml b/Cargo.toml
index c062c54..e13ad66 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -44,18 +44,6 @@ rustdoc-args = [
 name = "signal_hook_mio"
 path = "src/lib.rs"
 
-[[test]]
-name = "mio_0_6"
-path = "tests/mio_0_6.rs"
-
-[[test]]
-name = "mio_0_7"
-path = "tests/mio_0_7.rs"
-
-[[test]]
-name = "mio_0_8"
-path = "tests/mio_0_8.rs"
-
 [[test]]
 name = "mio_1_0"
 path = "tests/mio_1_0.rs"
@@ -63,29 +51,6 @@ path = "tests/mio_1_0.rs"
 [dependencies.libc]
 version = "~0.2"
 
-[dependencies.mio-0_6]
-version = "~0.6"
-optional = true
-package = "mio"
-
-[dependencies.mio-0_7]
-version = "~0.7"
-features = [
-    "os-util",
-    "uds",
-]
-optional = true
-package = "mio"
-
-[dependencies.mio-0_8]
-version = "~0.8"
-features = [
-    "net",
-    "os-ext",
-]
-optional = true
-package = "mio"
-
 [dependencies.mio-1_0]
 version = "~1.0"
 features = [
@@ -95,32 +60,13 @@ features = [
 optional = true
 package = "mio"
 
-[dependencies.mio-uds]
-version = "~0.6"
-optional = true
-
 [dependencies.signal-hook]
 version = "~0.3"
 
-[dev-dependencies.mio-0_7]
-version = "~0.7"
-features = [
-    "os-util",
-    "os-poll",
-    "uds",
-]
-package = "mio"
-
 [dev-dependencies.serial_test]
 version = "~0.5"
 
 [features]
-support-v0_6 = [
-    "mio-0_6",
-    "mio-uds",
-]
-support-v0_7 = ["mio-0_7"]
-support-v0_8 = ["mio-0_8"]
 support-v1_0 = ["mio-1_0"]
 
 [badges.maintenance]