diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 01846c61a..5e39f0a1c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -208,7 +208,7 @@ jobs:
         EOF
         chmod a+x main.sh
     - name: Test and gather coverage
-      uses: danobi/vmtest-action@master
+      uses: danobi/vmtest-action@v0.8
       with:
         kernel: bzImage
         command: sh -c 'cd ${{ github.workspace }} && ./main.sh'
diff --git a/src/mmap.rs b/src/mmap.rs
index 4cf1ffe48..dce6a9faf 100644
--- a/src/mmap.rs
+++ b/src/mmap.rs
@@ -128,7 +128,7 @@ mod tests {
     use std::ffi::CStr;
     use std::io::Write;
 
-    use tempfile::tempfile;
+    use tempfile::NamedTempFile;
     use test_log::test;
 
     use crate::util::ReadRaw;
@@ -144,20 +144,22 @@ mod tests {
     /// Check that we can `mmap` an empty file.
     #[test]
     fn mmap_empty_file() {
-        let file = tempfile().unwrap();
-        let mmap = Mmap::map(&file).unwrap();
+        let file = NamedTempFile::new().unwrap();
+        let file = file.as_file();
+        let mmap = Mmap::map(file).unwrap();
         assert_eq!(mmap.deref(), &[]);
     }
 
     /// Check that we can `mmap` a file.
     #[test]
     fn mmap() {
-        let mut file = tempfile().unwrap();
+        let file = NamedTempFile::new().unwrap();
+        let mut file = file.as_file();
         let cstr = b"Daniel was here. Briefly.\0";
         let () = file.write_all(cstr).unwrap();
         let () = file.sync_all().unwrap();
 
-        let mmap = Mmap::map(&file).unwrap();
+        let mmap = Mmap::map(file).unwrap();
         let mut data = mmap.deref();
         let s = data.read_cstr().unwrap();
         assert_eq!(
@@ -169,12 +171,13 @@ mod tests {
     /// Check that we can properly restrict the view of a `Mmap`.
     #[test]
     fn view_constraining() {
-        let mut file = tempfile().unwrap();
+        let file = NamedTempFile::new().unwrap();
+        let mut file = file.as_file();
         let s = b"abcdefghijklmnopqrstuvwxyz";
         let () = file.write_all(s).unwrap();
         let () = file.sync_all().unwrap();
 
-        let mmap = Mmap::map(&file).unwrap();
+        let mmap = Mmap::map(file).unwrap();
         assert_eq!(mmap.deref(), b"abcdefghijklmnopqrstuvwxyz");
 
         let mmap = mmap.constrain(1..15).unwrap();
diff --git a/src/symbolize/perf_map.rs b/src/symbolize/perf_map.rs
index 99a2cfbc3..54f7ca928 100644
--- a/src/symbolize/perf_map.rs
+++ b/src/symbolize/perf_map.rs
@@ -206,7 +206,7 @@ mod tests {
 
     use scopeguard::defer;
 
-    use tempfile::tempfile;
+    use tempfile::NamedTempFile;
 
     use crate::symbolize::Input;
     use crate::symbolize::Process;
@@ -257,9 +257,9 @@ mod tests {
         };
         assert_ne!(format!("{func:?}"), "");
 
-        let mut file = tempfile().unwrap();
+        let mut file = NamedTempFile::new().unwrap();
         let () = file.write_all(SAMPLE_PERF_MAP).unwrap();
-        let perf_map = PerfMap::from_file(Path::new("SAMPLE_PERF_MAP"), &file).unwrap();
+        let perf_map = PerfMap::from_file(file.path(), file.as_file()).unwrap();
         assert_ne!(format!("{perf_map:?}"), "");
     }
 
@@ -295,9 +295,9 @@ mod tests {
     /// Check that we can load a perf map and use it to symbolize an address.
     #[test]
     fn perf_map_symbolization() {
-        let mut file = tempfile().unwrap();
+        let mut file = NamedTempFile::new().unwrap();
         let () = file.write_all(SAMPLE_PERF_MAP).unwrap();
-        let perf_map = PerfMap::from_file(Path::new("SAMPLE_PERF_MAP"), &file).unwrap();
+        let perf_map = PerfMap::from_file(file.path(), file.as_file()).unwrap();
 
         for offset in 0..0xb {
             let sym = perf_map