diff --git a/Cargo.lock b/Cargo.lock
index 2ebc653..c3f8e6b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2198,6 +2198,7 @@ dependencies = [
  "rstest",
  "serde",
  "sha3",
+ "temp-env",
  "thiserror",
  "time",
  "tokio",
@@ -2567,6 +2568,15 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "temp-env"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96374855068f47402c3121c6eed88d29cb1de8f3ab27090e273e420bdabcf050"
+dependencies = [
+ "parking_lot",
+]
+
 [[package]]
 name = "termtree"
 version = "0.4.1"
diff --git a/Cargo.toml b/Cargo.toml
index 3b3ecdf..f4418ba 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -34,6 +34,7 @@ time = "0.3.36"
 assert_cmd = "2.0.14"
 criterion = { version = "0.5.1", features = ["html_reports"] }
 rstest = "0.22.0"
+temp-env = "0.3.6"
 
 [[bench]]
 name = "main"
diff --git a/src/logging.rs b/src/logging.rs
index 2972ea8..840abd8 100644
--- a/src/logging.rs
+++ b/src/logging.rs
@@ -33,13 +33,16 @@ mod tests {
     #[case("DEBUG")]
     #[case("TRACE")]
     fn get_valid_subscriber(#[case] log_level: String) {
-        env::set_var("RUST_LOG", &log_level);
-        assert!(get_subscriber(false).is_ok());
+        temp_env::with_var("RUST_LOG", Some(&log_level), || {
+            assert!(get_subscriber(false).is_ok());
+            env::remove_var("RUST_LOG");
+        });
     }
 
     #[rstest]
     fn err_if_level_not_set() {
-        env::remove_var("RUST_LOG");
-        assert!(get_subscriber(false).is_err());
+        temp_env::with_var("RUST_LOG", None::<&str>, || {
+            assert!(get_subscriber(false).is_err());
+        });
     }
 }