diff --git a/Cargo.lock b/Cargo.lock
index db3eb19..10a0a32 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,7 +46,7 @@ dependencies = [
 
 [[package]]
 name = "anysnake2"
-version = "1.3.2"
+version = "1.4.0"
 dependencies = [
  "anyhow",
  "base64",
@@ -66,7 +66,6 @@ dependencies = [
  "serde_json",
  "sha256",
  "stderrlog",
- "tempdir",
  "tempfile",
  "terminal_size",
  "toml",
@@ -89,15 +88,15 @@ dependencies = [
 
 [[package]]
 name = "autocfg"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "backtrace"
-version = "0.3.63"
+version = "0.3.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "321629d8ba6513061f26707241fa9bc89524ff1cd7a915a97ef0c62c666ce1b6"
+checksum = "5e121dee8023ce33ab248d9ce1493df03c3b38a659b240096fcbd7048ff9c31f"
 dependencies = [
  "addr2line",
  "cc",
@@ -223,9 +222,9 @@ dependencies = [
 
 [[package]]
 name = "crc32fast"
-version = "1.3.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2209c310e29876f7f0b2721e7e26b84aff178aa3da5d091f9bfbf47669e60e3"
+checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
 dependencies = [
  "cfg-if 1.0.0",
 ]
@@ -295,12 +294,6 @@ dependencies = [
  "percent-encoding",
 ]
 
-[[package]]
-name = "fuchsia-cprng"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
-
 [[package]]
 name = "generic-array"
 version = "0.14.5"
@@ -418,9 +411,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.103"
+version = "0.2.117"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd8f7255a17a627354f321ef0055d63b898c6fb27eff628af4d1b66b7331edf6"
+checksum = "e74d72e0f9b65b5b4ca49a346af3976df0f9c61d550727f349ecd559f251a26c"
 
 [[package]]
 name = "lock_api"
@@ -534,9 +527,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
+checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
 
 [[package]]
 name = "opaque-debug"
@@ -576,9 +569,9 @@ checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.29"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f5105d4fdaab20335ca9565e106a5d9b82b6219b5ba735731124ac6711d23d"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
@@ -591,50 +584,13 @@ checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "864d3e96a899863136fc6e99f3d7cae289dafe43bf2c5ac19b70df7210c0a145"
 dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rand"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293"
-dependencies = [
- "fuchsia-cprng",
- "libc",
- "rand_core 0.3.1",
- "rdrand",
- "winapi",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
-dependencies = [
- "rand_core 0.4.2",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
-
-[[package]]
-name = "rdrand"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
-dependencies = [
- "rand_core 0.3.1",
-]
-
 [[package]]
 name = "redox_syscall"
 version = "0.1.57"
@@ -787,9 +743,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ecab6c735a6bb4139c0caafd0cc3635748bbb3acf4550e8138122099251f309"
+checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
 
 [[package]]
 name = "spin"
@@ -818,25 +774,15 @@ checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
 [[package]]
 name = "syn"
-version = "1.0.80"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d010a1623fbd906d51d650a9916aaefc05ffa0e4053ff7fe601167f3e715d194"
+checksum = "8a65b3f4ffa0092e9887669db0eae07941f023991ab58ea44da8fe8e2d511c6b"
 dependencies = [
  "proc-macro2",
  "quote",
  "unicode-xid",
 ]
 
-[[package]]
-name = "tempdir"
-version = "0.3.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
-dependencies = [
- "rand",
- "remove_dir_all",
-]
-
 [[package]]
 name = "tempfile"
 version = "3.3.0"
@@ -945,9 +891,9 @@ dependencies = [
 
 [[package]]
 name = "toml_edit"
-version = "0.13.2"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "367437aa05be74122fa0d982b84a91938871df88c69edb759ed1c310724fe2d9"
+checksum = "744e9ed5b352340aa47ce033716991b5589e23781acb97cad37d4ea70560f55b"
 dependencies = [
  "combine",
  "indexmap",
diff --git a/Cargo.toml b/Cargo.toml
index 1f33d68..cd9f24a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,6 @@ serde = {version="1.0.130", features = ["derive"]}
 serde_json = "1.0"
 sha256 = "1.0.2"
 stderrlog = "0.5.1"
-tempdir = "0.3.7"
 tempfile = "3.3.0"
 terminal_size = "0.1.17"
 toml = "0.5"
diff --git a/flake.nix b/flake.nix
index 4548e85..cb592de 100644
--- a/flake.nix
+++ b/flake.nix
@@ -44,7 +44,7 @@
         # `nix develop`
         devShell = pkgs.mkShell {
           # supply the specific rust version
-          nativeBuildInputs = [ rust  pkgs.rust-analyzer pkgs.git pkgs.cargo-udeps];
+          nativeBuildInputs = [ rust  pkgs.rust-analyzer pkgs.git pkgs.cargo-udeps pkgs.cargo-audit];
         };
       });
 }
diff --git a/src/main.rs b/src/main.rs
index f6f1577..5c130bf 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1133,8 +1133,8 @@ fn fill_venv(
     if !to_build.is_empty() {
         for (safe_pkg, target_dir) in to_build.iter() {
             info!("Pip install {:?}", &target_dir);
-            let td = tempdir::TempDir::new("anysnake_venv")?; // temp /tmp
-            let td_home = tempdir::TempDir::new("anysnake_venv")?; // temp home directory
+            let td = tempfile::Builder::new().prefix("anysnake_venv").tempdir()?; // temp /tmp
+            let td_home = tempfile::Builder::new().prefix("anysnake_venv").tempdir()?; // temp home directory
             let td_home_str = td_home.path().to_string_lossy().to_string();
 
             let target_python: PathBuf =
diff --git a/tests/integration_tests.rs b/tests/integration_tests.rs
index 3c2da79..e8730b3 100644
--- a/tests/integration_tests.rs
+++ b/tests/integration_tests.rs
@@ -1,7 +1,7 @@
 use named_lock::NamedLock;
 use std::path::PathBuf;
 use std::process::Command;
-use tempdir::TempDir;
+use tempfile::TempDir;
 
 fn run_test(cwd: &str, args: &[&str]) -> (i32, String, String) {
     //can't have more than one running from a given folder at a time
@@ -44,7 +44,7 @@ fn run_test(cwd: &str, args: &[&str]) -> (i32, String, String) {
 }
 
 fn run_test_tempdir(cwd: &str, args: &[&str]) -> ((i32, String, String), TempDir) {
-    let td = TempDir::new("anysnake_test").expect("could not create tempdir");
+    let td = tempfile::Builder::new().prefix("anysnake_test").tempdir().expect("could not create tempdir");
     /* std::fs::copy(
         PathBuf::from(&cwd).join("anysnake2.toml"),
         td.path().join("anysnake2.toml"),