diff --git a/Cargo.lock b/Cargo.lock
index 06c2c5a0453..aa88e03af98 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3371,9 +3371,9 @@ dependencies = [
 
 [[package]]
 name = "tar"
-version = "0.4.41"
+version = "0.4.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb797dad5fb5b76fcf519e702f4a589483b5ef06567f160c392832c1f5e44909"
+checksum = "4ff6c40d3aedb5e06b57c6f669ad17ab063dd1e63d977c6a88e7f4dfa4f04020"
 dependencies = [
  "filetime",
  "libc",
diff --git a/Cargo.toml b/Cargo.toml
index 9682e216dc1..c62dc28df49 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -94,7 +94,7 @@ shell-escape = "0.1.5"
 similar = "2.6.0"
 supports-hyperlinks = "3.0.0"
 snapbox = { version = "0.6.17", features = ["diff", "dir", "term-svg", "regex", "json"] }
-tar = { version = "0.4.41", default-features = false }
+tar = { version = "0.4.42", default-features = false }
 tempfile = "3.10.1"
 thiserror = "1.0.63"
 time = { version = "0.3.36", features = ["parsing", "formatting", "serde"] }
diff --git a/crates/cargo-test-support/src/containers.rs b/crates/cargo-test-support/src/containers.rs
index 22fd5fd855e..4ce6e1d5048 100644
--- a/crates/cargo-test-support/src/containers.rs
+++ b/crates/cargo-test-support/src/containers.rs
@@ -122,6 +122,7 @@ impl Container {
             return;
         }
         let mut ar = tar::Builder::new(Vec::new());
+        ar.sparse(false);
         let files = std::mem::replace(&mut self.files, Vec::new());
         for mut file in files {
             ar.append_data(&mut file.header, &file.path, file.contents.as_slice())
diff --git a/crates/cargo-test-support/src/registry.rs b/crates/cargo-test-support/src/registry.rs
index 5af522a38cc..9e0bc9e3ed9 100644
--- a/crates/cargo-test-support/src/registry.rs
+++ b/crates/cargo-test-support/src/registry.rs
@@ -1513,6 +1513,7 @@ impl Package {
         t!(fs::create_dir_all(dst.parent().unwrap()));
         let f = t!(File::create(&dst));
         let mut a = Builder::new(GzEncoder::new(f, Compression::none()));
+        a.sparse(false);
 
         if !self
             .files
diff --git a/src/cargo/ops/cargo_package.rs b/src/cargo/ops/cargo_package.rs
index 04708584027..239e5af2afb 100644
--- a/src/cargo/ops/cargo_package.rs
+++ b/src/cargo/ops/cargo_package.rs
@@ -903,6 +903,7 @@ fn tar(
 
     // Put all package files into a compressed archive.
     let mut ar = Builder::new(encoder);
+    ar.sparse(false);
     let gctx = ws.gctx();
 
     let base_name = format!("{}-{}", pkg.name(), pkg.version());