diff --git a/Cargo.lock b/Cargo.lock
index 502de63a2d67c26ffecfa87155a5bd3c8cd18d01..b4ca6a00460c5bea8e8b4cbaab699786d57cbc89 100644
--- a/Cargo.lock
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-"checksum wayland-commons 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)" = "40c08896768b667e1df195d88a62a53a2d1351a1ed96188be79c196b35bb32ec"
-"checksum wayland-protocols 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)" = "4afde2ea2a428eee6d7d2c8584fdbe8b82eee8b6c353e129a434cd6e07f42145"
-"checksum wayland-scanner 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3828c568714507315ee425a9529edc4a4aa9901409e373e9e0027e7622b79e"
-"checksum wayland-sys 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)" = "520ab0fd578017a0ee2206623ba9ef4afe5e8f23ca7b42f6acfba2f4e66b1628"
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-"checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
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-"checksum winapi-util 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "fa515c5163a99cc82bab70fd3bfdd36d827be85de63737b40fcef2ce084a436e"
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-"checksum winit 0.19.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1e96eb4bb472fa43e718e8fa4aef82f86cd9deac9483a1e1529230babdb394a8"
-"checksum x11-dl 2.18.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2bf981e3a5b3301209754218f962052d4d9ee97e478f4d26d4a6eced34c1fef8"
-"checksum xdg 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d089681aa106a86fade1b0128fb5daf07d5867a509ab036d99988dec80429a57"
-"checksum xml-rs 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2bb76e5c421bbbeb8924c60c030331b345555024d56261dae8f3e786ed817c23"
+checksum = "b07db065a5cf61a7e4ba64f29e67db906fb1787316516c4e6e5ff0fea1efcd8a"
diff --git a/Cargo.toml b/Cargo.toml
index 19125b6843992f5bc404ef51489abde4e29f0fb2..64476c427f2ba0b6e75af237dfb76f7ac4f41385 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -65,20 +65,20 @@ redox_liner = { git = "https://gitlab.redox-os.org/redox-os/liner" }
 rand = "0.7"
 regex = { version = "1.3", default-features = false, features = ["std", "perf"] }
 small = { git = "https://gitlab.redox-os.org/redox-os/small", features = ["std"] }
-smallvec = "0.6"
-unicode-segmentation = "1.3"
+smallvec = "1.4"
+unicode-segmentation = "1.6"
 ion-ranges = { version = "0.1", path = "members/ranges" }
 scopes = { version = "0.1", path = "members/scopes-rs" }
 types-rs = { version = "0.1", path = "members/types-rs" }
 builtins-proc = { version = "0.1", path = "members/builtins-proc" }
-itertools = "0.8"
-lexical = "4.0"
-object-pool = "0.3.1"
-auto_enums = "0.6"
+itertools = "0.9"
+lexical = "5.2"
+object-pool = "0.5"
+auto_enums = "0.7"
 structopt = "0.3"
 atty = "0.2"
 permutate = "0.3"
-xdg = "2.1"
+xdg = "2.2"
 nix = { git = "https://github.com/AdminXVII/nix", branch = "add-redox-support-bis" }
 mktemp = "0.4"
 
@@ -89,7 +89,7 @@ piston_window = { version = "0.105", optional = true }
 piston2d-sprite = { version = "0.58", optional = true }
 
 [target."cfg(all(unix, not(target_os = \"redox\")))".dependencies]
-users = "0.9"
+users = "0.10"
 
 [target."cfg(target_os = \"redox\")".dependencies]
 redox_users = "0.3"
diff --git a/members/types-rs/Cargo.toml b/members/types-rs/Cargo.toml
index 41d8e7d2419305f0dea25c828cad906920677eb7..60f14886314880751df38c9bc53aec207519fed4 100644
--- a/members/types-rs/Cargo.toml
+++ b/members/types-rs/Cargo.toml
@@ -11,6 +11,6 @@ readme = "README.md"
 categories = ["parsing"]
 
 [dependencies]
-lexical = "4.0"
+lexical = "5.2"
 small = { git = "https://gitlab.redox-os.org/redox-os/small", features = ["std"] }
-itertools = "0.8"
+itertools = "0.9"
diff --git a/src/lib/memory.rs b/src/lib/memory.rs
index 8191b64e3f6cc4cd2ee178d2c3a3523ad1454595..9b93447b5839b8dc36a867c21754e3b942db0f87 100644
--- a/src/lib/memory.rs
+++ b/src/lib/memory.rs
@@ -24,7 +24,7 @@ pub struct IonPool;
 
 impl IonPool {
     pub fn string<T, F: FnMut(&mut Str) -> T>(mut callback: F) -> T {
-        STRINGS.with(|pool| match pool.pull() {
+        STRINGS.with(|pool| match pool.try_pull() {
             Some(ref mut string) => call_and_shrink!(string, callback),
             None => callback(&mut Str::new()),
         })