diff --git a/Cargo.lock b/Cargo.lock
index d9ad5d2..c79e70b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -14,9 +14,9 @@ checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
 [[package]]
 name = "byteorder"
-version = "1.3.4"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
+checksum = "ae44d1a3d5a19df61dd0c8beb138458ac2a53a7ac09eba97d55592540004306b"
 
 [[package]]
 name = "cc"
@@ -26,9 +26,9 @@ checksum = "4c0496836a84f8d0495758516b8621a622beb77c0fed418570e50764093ced48"
 
 [[package]]
 name = "cfg-if"
-version = "0.1.10"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "compiler_builtins"
@@ -68,9 +68,9 @@ dependencies = [
 
 [[package]]
 name = "fatfs"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93079df23039e52059e1f03b4c29fb0c72da2c792aad91bb2236c9fb81d3592e"
+checksum = "e18f80a87439240dac45d927fd8f8081b6f1e34c03e97271189fa8a8c2e96c8f"
 dependencies = [
  "bitflags",
  "byteorder",
@@ -148,15 +148,15 @@ dependencies = [
 
 [[package]]
 name = "linked_list_allocator"
-version = "0.8.8"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e6766dff3bf932e0d1c7f1cf27c0a46008f7839f85b015a312c276a4570a399"
+checksum = "822add9edb1860698b79522510da17bef885171f75aa395cff099d770c609c24"
 
 [[package]]
 name = "log"
-version = "0.4.11"
+version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
+checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
 dependencies = [
  "cfg-if",
 ]
@@ -202,9 +202,9 @@ checksum = "bd7a31eed1591dcbc95d92ad7161908e72f4677f8fabf2a32ca49b4237cbf211"
 
 [[package]]
 name = "smoltcp"
-version = "0.6.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fe46639fd2ec79eadf8fe719f237a7a0bd4dac5d957f1ca5bbdbc1c3c39e53a"
+checksum = "ab527c390c7e107f687bd92a886a083fde61b8cdc700b37f3d7e4346ffd8fae1"
 dependencies = [
  "bitflags",
  "byteorder",
@@ -227,9 +227,9 @@ dependencies = [
 
 [[package]]
 name = "vcell"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "876e32dcadfe563a4289e994f7cb391197f362b6315dc45e8ba4aa6f564a4b3c"
+checksum = "77439c1b53d2303b20d9459b1ade71a83c716e3f9c34f3228c00e6f185d6c002"
 
 [[package]]
 name = "void"
diff --git a/libasync/Cargo.toml b/libasync/Cargo.toml
index e943b54..9693d02 100644
--- a/libasync/Cargo.toml
+++ b/libasync/Cargo.toml
@@ -13,6 +13,6 @@ nb = "1.0"
 libcortex_a9 = { path = "../libcortex_a9" }
 
 [dependencies.smoltcp]
-version = "0.6"
+version = "0.7"
 default-features = false
 features = ["alloc"]
diff --git a/libasync/src/smoltcp/mod.rs b/libasync/src/smoltcp/mod.rs
index 0a819c5..f883263 100644
--- a/libasync/src/smoltcp/mod.rs
+++ b/libasync/src/smoltcp/mod.rs
@@ -23,7 +23,7 @@ pub trait LinkCheck {
 static mut SOCKETS: Option<Sockets> = None;
 
 pub struct Sockets {
-    sockets: RefCell<SocketSet<'static, 'static, 'static>>,
+    sockets: RefCell<SocketSet<'static>>,
     wakers: RefCell<Vec<Waker>>,
 }
 
@@ -47,8 +47,8 @@ impl Sockets {
 
     /// Block and run executor indefinitely while polling the smoltcp
     /// iface
-    pub fn run<'b, 'c, 'e, D: for<'d> Device<'d> + LinkCheck>(
-        iface: &mut EthernetInterface<'b, 'c, 'e, D>,
+    pub fn run<'b, D: for<'d> Device<'d> + LinkCheck>(
+        iface: &mut EthernetInterface<'b, D>,
         mut get_time: impl FnMut() -> Instant,
     ) -> ! {
         task::block_on(async {
@@ -74,9 +74,9 @@ impl Sockets {
         unsafe { SOCKETS.as_ref().expect("Sockets") }
     }
 
-    fn poll<'b, 'c, 'e, D: for<'d> Device<'d>>(
+    fn poll<'b, D: for<'d> Device<'d>>(
         &self,
-        iface: &mut EthernetInterface<'b, 'c, 'e, D>,
+        iface: &mut EthernetInterface<'b, D>,
         instant: Instant
     ) {
         let processed = {
diff --git a/libboard_zynq/Cargo.toml b/libboard_zynq/Cargo.toml
index cc738e8..d3b4ae2 100644
--- a/libboard_zynq/Cargo.toml
+++ b/libboard_zynq/Cargo.toml
@@ -24,6 +24,6 @@ libcortex_a9 = { path = "../libcortex_a9" }
 libasync = { path = "../libasync" }
 
 [dependencies.smoltcp]
-version = "0.6"
+version = "0.7"
 features = ["ethernet", "proto-ipv4", "socket-tcp"]
 default-features = false