diff --git a/Cargo.lock b/Cargo.lock
index 8e3d4fe5..80dbd88a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -183,12 +183,6 @@ dependencies = [
  "tokio",
 ]
 
-[[package]]
-name = "base-x"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4521f3e3d031370679b3b140beb36dfe4801b09ac77e30c61941f97df3ef28b"
-
 [[package]]
 name = "base32"
 version = "0.4.0"
@@ -681,12 +675,6 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "const_fn"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28b9d6de7f49e22cf97ad17fc4036ece69300032f45f78f30b4a4482cdc3f4a6"
-
 [[package]]
 name = "core-foundation"
 version = "0.9.1"
@@ -975,12 +963,6 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "discard"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "212d0f5754cb6769937f4501cc0e67f4f4483c8d2c3e1e922ee9edbe4ab4c7c0"
-
 [[package]]
 name = "ecdsa_fun"
 version = "0.6.2-alpha.0"
@@ -3753,12 +3735,6 @@ dependencies = [
  "opaque-debug 0.3.0",
 ]
 
-[[package]]
-name = "sha1"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
-
 [[package]]
 name = "sha2"
 version = "0.8.2"
@@ -3965,70 +3941,12 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
-[[package]]
-name = "standback"
-version = "0.2.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2beb4d1860a61f571530b3f855a1b538d0200f7871c63331ecd6f17b1f014f8"
-dependencies = [
- "version_check 0.9.3",
-]
-
 [[package]]
 name = "static_assertions"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
-[[package]]
-name = "stdweb"
-version = "0.4.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d022496b16281348b52d0e30ae99e01a73d737b2f45d38fed4edf79f9325a1d5"
-dependencies = [
- "discard",
- "rustc_version 0.2.3",
- "stdweb-derive",
- "stdweb-internal-macros",
- "stdweb-internal-runtime",
- "wasm-bindgen",
-]
-
-[[package]]
-name = "stdweb-derive"
-version = "0.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c87a60a40fccc84bef0652345bbbbbe20a605bf5d0ce81719fc476f5c03b50ef"
-dependencies = [
- "proc-macro2 1.0.27",
- "quote 1.0.9",
- "serde",
- "serde_derive",
- "syn 1.0.73",
-]
-
-[[package]]
-name = "stdweb-internal-macros"
-version = "0.2.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58fa5ff6ad0d98d1ffa8cb115892b6e69d67799f6763e162a1c9db421dc22e11"
-dependencies = [
- "base-x",
- "proc-macro2 1.0.27",
- "quote 1.0.9",
- "serde",
- "serde_derive",
- "serde_json",
- "sha1",
- "syn 1.0.73",
-]
-
-[[package]]
-name = "stdweb-internal-runtime"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "213701ba3370744dcd1a12960caa4843b3d68b4d1c0a5d575e0d65b2ee9d16c0"
-
 [[package]]
 name = "strsim"
 version = "0.8.0"
@@ -4160,7 +4078,7 @@ dependencies = [
  "tempfile",
  "testcontainers 0.12.0",
  "thiserror",
- "time 0.2.27",
+ "time 0.3.2",
  "tokio",
  "tokio-socks",
  "tokio-tar",
@@ -4318,40 +4236,11 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.2.27"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4752a97f8eebd6854ff91f1c1824cd6160626ac4bd44287f7f4ea2035a02a242"
+checksum = "3e0a10c9a9fb3a5dce8c2239ed670f1a2569fcf42da035f5face1b19860d52b0"
 dependencies = [
- "const_fn",
  "libc",
- "standback",
- "stdweb",
- "time-macros",
- "version_check 0.9.3",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "time-macros"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "957e9c6e26f12cb6d0dd7fc776bb67a706312e7299aed74c8dd5b17ebb27e2f1"
-dependencies = [
- "proc-macro-hack",
- "time-macros-impl",
-]
-
-[[package]]
-name = "time-macros-impl"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5c3be1edfad6027c69f5491cf4cb310d1a71ecd6af742788c6ff8bced86b8fa"
-dependencies = [
- "proc-macro-hack",
- "proc-macro2 1.0.27",
- "quote 1.0.9",
- "standback",
- "syn 1.0.73",
 ]
 
 [[package]]
diff --git a/swap/Cargo.toml b/swap/Cargo.toml
index dbee39a1..f2f84e98 100644
--- a/swap/Cargo.toml
+++ b/swap/Cargo.toml
@@ -52,7 +52,7 @@ sled = "0.34"
 structopt = "0.3"
 strum = { version = "0.21", features = [ "derive" ] }
 thiserror = "1"
-time = "0.2"
+time = "0.3"
 tokio = { version = "1", features = [ "rt-multi-thread", "time", "macros", "sync", "process", "fs", "net" ] }
 tokio-socks = "0.5"
 tokio-tungstenite = { version = "0.15", features = [ "rustls-tls" ] }
diff --git a/swap/src/env.rs b/swap/src/env.rs
index e12390a8..434e9b47 100644
--- a/swap/src/env.rs
+++ b/swap/src/env.rs
@@ -2,7 +2,7 @@ use crate::asb;
 use crate::bitcoin::{CancelTimelock, PunishTimelock};
 use std::cmp::max;
 use std::time::Duration;
-use time::NumericalStdDurationShort;
+use time::ext::NumericalStdDuration;
 
 #[derive(Debug, Copy, Clone, PartialEq)]
 pub struct Config {
@@ -44,14 +44,14 @@ pub struct Regtest;
 impl GetConfig for Mainnet {
     fn get_config() -> Config {
         Config {
-            bitcoin_lock_mempool_timeout: 3.minutes(),
-            bitcoin_lock_confirmed_timeout: 2.hours(),
+            bitcoin_lock_mempool_timeout: 3.std_minutes(),
+            bitcoin_lock_confirmed_timeout: 2.std_hours(),
             bitcoin_finality_confirmations: 2,
-            bitcoin_avg_block_time: 10.minutes(),
+            bitcoin_avg_block_time: 10.std_minutes(),
             bitcoin_cancel_timelock: CancelTimelock::new(72),
             bitcoin_punish_timelock: PunishTimelock::new(72),
             bitcoin_network: bitcoin::Network::Bitcoin,
-            monero_avg_block_time: 2.minutes(),
+            monero_avg_block_time: 2.std_minutes(),
             monero_finality_confirmations: 10,
             monero_network: monero::Network::Mainnet,
         }
@@ -61,14 +61,14 @@ impl GetConfig for Mainnet {
 impl GetConfig for Testnet {
     fn get_config() -> Config {
         Config {
-            bitcoin_lock_mempool_timeout: 3.minutes(),
-            bitcoin_lock_confirmed_timeout: 1.hours(),
+            bitcoin_lock_mempool_timeout: 3.std_minutes(),
+            bitcoin_lock_confirmed_timeout: 1.std_hours(),
             bitcoin_finality_confirmations: 2,
-            bitcoin_avg_block_time: 10.minutes(),
+            bitcoin_avg_block_time: 10.std_minutes(),
             bitcoin_cancel_timelock: CancelTimelock::new(12),
             bitcoin_punish_timelock: PunishTimelock::new(6),
             bitcoin_network: bitcoin::Network::Testnet,
-            monero_avg_block_time: 2.minutes(),
+            monero_avg_block_time: 2.std_minutes(),
             monero_finality_confirmations: 10,
             monero_network: monero::Network::Stagenet,
         }
@@ -78,14 +78,14 @@ impl GetConfig for Testnet {
 impl GetConfig for Regtest {
     fn get_config() -> Config {
         Config {
-            bitcoin_lock_mempool_timeout: 30.seconds(),
-            bitcoin_lock_confirmed_timeout: 1.minutes(),
+            bitcoin_lock_mempool_timeout: 30.std_seconds(),
+            bitcoin_lock_confirmed_timeout: 1.std_minutes(),
             bitcoin_finality_confirmations: 1,
-            bitcoin_avg_block_time: 5.seconds(),
+            bitcoin_avg_block_time: 5.std_seconds(),
             bitcoin_cancel_timelock: CancelTimelock::new(100),
             bitcoin_punish_timelock: PunishTimelock::new(50),
             bitcoin_network: bitcoin::Network::Regtest,
-            monero_avg_block_time: 1.seconds(),
+            monero_avg_block_time: 1.std_seconds(),
             monero_finality_confirmations: 10,
             monero_network: monero::Network::Mainnet, // yes this is strange
         }