diff --git a/Changelog.md b/Changelog.md
index fcb93a5c4..2a3ba6bb2 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * **Breaking Change**: Remove deprecated `python-source` option in `Cargo.toml` in [#1335](https://github.com/PyO3/maturin/pull/1335)
 * **Breaking Change**: Turn `patchelf` version warning into a hard error in [#1335](https://github.com/PyO3/maturin/pull/1335)
 * **Breaking Change**: [`uniffi_bindgen` CLI](https://mozilla.github.io/uniffi-rs/tutorial/Prerequisites.html#the-uniffi-bindgen-cli-tool) is required for building `uniffi` bindings wheels in [#1352](https://github.com/PyO3/maturin/pull/1352)
+* Add workspace lock file to sdist as a fallback in [#1362](https://github.com/PyO3/maturin/pull/1362)
 
 ## [0.14.6] - 2022-12-13
 
diff --git a/src/source_distribution.rs b/src/source_distribution.rs
index ab460bc33..36f6a59ac 100644
--- a/src/source_distribution.rs
+++ b/src/source_distribution.rs
@@ -590,16 +590,27 @@ pub fn source_distribution(
     let abs_manifest_path = manifest_path.normalize()?.into_path_buf();
     let abs_manifest_dir = abs_manifest_path.parent().unwrap();
     let cargo_lock_path = abs_manifest_dir.join("Cargo.lock");
+    let cargo_lock_exists = cargo_lock_path.exists();
+    let workspace_cargo_lock = build_context
+        .cargo_metadata
+        .workspace_root
+        .join("Cargo.lock");
+    let workspace_cargo_lock_exists = workspace_cargo_lock.exists();
     let cargo_lock_required =
         build_context.cargo_options.locked || build_context.cargo_options.frozen;
-    if cargo_lock_required || cargo_lock_path.exists() {
+    if cargo_lock_required || cargo_lock_exists || workspace_cargo_lock_exists {
         let project_root = pyproject_toml_path.parent().unwrap();
         let relative_cargo_lock = if cargo_lock_path.starts_with(project_root) {
             cargo_lock_path.strip_prefix(project_root).unwrap()
         } else {
             cargo_lock_path.strip_prefix(abs_manifest_dir).unwrap()
         };
-        writer.add_file(root_dir.join(relative_cargo_lock), &cargo_lock_path)?;
+        if cargo_lock_exists {
+            writer.add_file(root_dir.join(relative_cargo_lock), &cargo_lock_path)?;
+        } else {
+            // Fallback to workspace Cargo lock file
+            writer.add_file(root_dir.join(relative_cargo_lock), workspace_cargo_lock)?;
+        }
     } else {
         eprintln!(
             "⚠️  Warning: Cargo.lock is not found, it is recommended \
diff --git a/tests/run.rs b/tests/run.rs
index 390e056fe..5a5d178d2 100644
--- a/tests/run.rs
+++ b/tests/run.rs
@@ -546,6 +546,22 @@ fn pyo3_mixed_include_exclude_wheel_files() {
     ))
 }
 
+#[test]
+fn workspace_sdist() {
+    handle_result(other::test_source_distribution(
+        "test-crates/workspace/py",
+        vec![
+            "py-0.1.0/Cargo.lock",
+            "py-0.1.0/Cargo.toml",
+            "py-0.1.0/PKG-INFO",
+            "py-0.1.0/pyproject.toml",
+            "py-0.1.0/src/main.rs",
+        ],
+        None,
+        "sdist-workspace",
+    ))
+}
+
 #[test]
 fn workspace_with_path_dep_sdist() {
     handle_result(other::test_source_distribution(
@@ -555,6 +571,7 @@ fn workspace_with_path_dep_sdist() {
             "workspace_with_path_dep-0.1.0/local_dependencies/generic_lib/src/lib.rs",
             "workspace_with_path_dep-0.1.0/local_dependencies/transitive_lib/Cargo.toml",
             "workspace_with_path_dep-0.1.0/local_dependencies/transitive_lib/src/lib.rs",
+            "workspace_with_path_dep-0.1.0/Cargo.lock",
             "workspace_with_path_dep-0.1.0/Cargo.toml",
             "workspace_with_path_dep-0.1.0/pyproject.toml",
             "workspace_with_path_dep-0.1.0/src/lib.rs",
@@ -573,6 +590,7 @@ fn workspace_inheritance_sdist() {
         vec![
             "workspace_inheritance-0.1.0/local_dependencies/generic_lib/Cargo.toml",
             "workspace_inheritance-0.1.0/local_dependencies/generic_lib/src/lib.rs",
+            "workspace_inheritance-0.1.0/Cargo.lock",
             "workspace_inheritance-0.1.0/Cargo.toml",
             "workspace_inheritance-0.1.0/pyproject.toml",
             "workspace_inheritance-0.1.0/src/lib.rs",