diff --git a/Cargo.toml b/Cargo.toml
index 932140a..8de8f7c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "vopono"
 description = "Launch applications via VPN tunnels using temporary network namespaces"
-version = "0.8.2"
+version = "0.8.3"
 authors = ["James McMurray <jamesmcm03@gmail.com>"]
 edition = "2018"
 license = "GPL-3.0-or-later"
@@ -20,7 +20,7 @@ pretty_env_logger = "0.4"
 clap = "2"
 which = "4"
 users = "0.11"
-nix = "0.21"
+nix = "0.22"
 serde = {version = "1", features = ["derive", "std"]}
 csv = "1"
 dialoguer ="0.8"
@@ -34,7 +34,7 @@ chrono = "0.4"
 compound_duration = "1"
 ipnet = {version = "2", features = ["serde"]}
 reqwest = {default-features = false, version = "0.11", features = ["blocking", "json", "rustls-tls"]}
-sysinfo = "0.18"
+sysinfo = "0.19"
 base64 = "0.13"
 x25519-dalek = "1"
 strum = "0.21"
diff --git a/src/netns.rs b/src/netns.rs
index fa8c5c5..3f4618e 100644
--- a/src/netns.rs
+++ b/src/netns.rs
@@ -455,6 +455,7 @@ impl Drop for NetworkNamespace {
             std::mem::forget(self.firewall_exception.take());
             std::mem::forget(self.host_masquerade.take());
             std::mem::forget(self.openconnect.take());
+            std::mem::forget(self.openfortivpn.take());
         }
     }
 }
diff --git a/src/util/mod.rs b/src/util/mod.rs
index 896aac7..565057e 100644
--- a/src/util/mod.rs
+++ b/src/util/mod.rs
@@ -149,17 +149,17 @@ pub fn get_existing_namespaces() -> anyhow::Result<Vec<String>> {
 
 pub fn check_process_running(pid: u32) -> bool {
     let s = System::new_with_specifics(RefreshKind::new().with_processes());
-    s.get_process(pid as i32).is_some()
+    s.process(pid as i32).is_some()
 }
 
 pub fn get_all_running_pids() -> Vec<u32> {
     let s = System::new_with_specifics(RefreshKind::new().with_processes());
-    s.get_processes().keys().map(|x| *x as u32).collect()
+    s.processes().keys().map(|x| *x as u32).collect()
 }
 
 pub fn get_all_running_process_names() -> Vec<String> {
     let s = System::new_with_specifics(RefreshKind::new().with_processes());
-    s.get_processes()
+    s.processes()
         .values()
         .map(|x| x.name().to_string())
         .collect()