diff --git a/rust2rpm/__main__.py b/rust2rpm/__main__.py
index f989986..bc6d240 100644
--- a/rust2rpm/__main__.py
+++ b/rust2rpm/__main__.py
@@ -117,6 +117,7 @@ def main():
         spec_contents = spec_render_workspace(
             metadata=metadata,
             main_package=main_package,
+            upstream_version=version,
             target=args.target,
             rpm_name=rpm_name,
             license_files=license_files,
diff --git a/rust2rpm/generator.py b/rust2rpm/generator.py
index 6e34db2..95b60b7 100644
--- a/rust2rpm/generator.py
+++ b/rust2rpm/generator.py
@@ -512,6 +512,7 @@ def spec_render_workspace(
     *,
     metadata: Metadata,
     main_package: Package,
+    upstream_version: str,
     target: str,
     rpm_name: str,
     license_files: list[str],
@@ -532,9 +533,7 @@ def spec_render_workspace(
 
     is_cdylib = metadata.is_cdylib()
 
-    upstream_version = main_package.version
     rpm_version = Version.parse(upstream_version).to_rpm()
-
     rpm_description = main_package.get_description()
     rpm_summary = main_package.get_summary()
 
diff --git a/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.fedora.spec b/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.fedora.spec
index 0203686..8d06ab9 100644
--- a/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.fedora.spec
+++ b/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.fedora.spec
@@ -2,7 +2,7 @@
 %bcond_without check
 
 Name:           system76-keyboard-configurator
-Version:        0.1.0
+Version:        1.3.9
 Release:        %autorelease
 Summary:        # FIXME
 
diff --git a/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.mageia.spec b/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.mageia.spec
index 56de809..eaabbc7 100644
--- a/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.mageia.spec
+++ b/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.mageia.spec
@@ -2,7 +2,7 @@
 %bcond_without check
 
 Name:           system76-keyboard-configurator
-Version:        0.1.0
+Version:        1.3.9
 Release:        %mkrel 1
 Summary:        # FIXME
 Group:          Development/Rust
@@ -88,5 +88,5 @@ BuildRequires:  (crate(zbus/default) >= 1.9.1 with crate(zbus/default) < 2.0.0~)
 %{_bindir}/system76-keyboard-configurator
 
 %changelog
-* Thu Jan 01 1970 Jane Jane <jane@jane.org> - 0.1.0-1
+* Thu Jan 01 1970 Jane Jane <jane@jane.org> - 1.3.9-1
 - Initial package
diff --git a/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.opensuse.spec b/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.opensuse.spec
index 5a71f9e..f115d40 100644
--- a/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.opensuse.spec
+++ b/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.opensuse.spec
@@ -19,7 +19,7 @@
 %bcond_without check
 
 Name:           system76-keyboard-configurator
-Version:        0.1.0
+Version:        1.3.9
 Release:        0
 Summary:        # FIXME
 Group:          Development/Libraries/Rust
@@ -106,5 +106,5 @@ BuildRequires:  (crate(zbus/default) >= 1.9.1 with crate(zbus/default) < 2.0.0~)
 
 %changelog
 * Thu Jan 01 03:25:45 GMT 1970 Jane Jane <jane@jane.org>
-- Version 0.1.0
+- Version 1.3.9
 - Initial package
diff --git a/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.plain.spec b/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.plain.spec
index 7fd156f..6220482 100644
--- a/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.plain.spec
+++ b/rust2rpm/tests/samples/system76-keyboard-configurator-1.3.9.plain.spec
@@ -2,7 +2,7 @@
 %bcond_without check
 
 Name:           system76-keyboard-configurator
-Version:        0.1.0
+Version:        1.3.9
 Release:        1%{?dist}
 Summary:        # FIXME
 
@@ -87,5 +87,5 @@ BuildRequires:  (crate(zbus/default) >= 1.9.1 with crate(zbus/default) < 2.0.0~)
 %{_bindir}/system76-keyboard-configurator
 
 %changelog
-* Thu Jan 01 1970 Jane Jane <jane@jane.org> - 0.1.0-1
+* Thu Jan 01 1970 Jane Jane <jane@jane.org> - 1.3.9-1
 - Initial package
diff --git a/rust2rpm/tests/test_generator.py b/rust2rpm/tests/test_generator.py
index d7f13f5..19ff236 100644
--- a/rust2rpm/tests/test_generator.py
+++ b/rust2rpm/tests/test_generator.py
@@ -156,6 +156,7 @@ def test_spec_file_render_project(filename: str, vendor_tarball: Optional[str],
 def test_spec_file_render_workspace(filename: str, vendor_tarball: Optional[str], target: str):
     crate_name_version = filename.removesuffix(".json")
     crate = crate_name_version.rsplit("-", 1)[0]
+    version = crate_name_version.rsplit("-", 1)[1]
 
     real_path = resources.files("rust2rpm.tests.samples").joinpath(filename)
     metadata = Metadata.from_json(real_path.read_text())
@@ -163,6 +164,7 @@ def test_spec_file_render_workspace(filename: str, vendor_tarball: Optional[str]
     rendered = spec_render_workspace(
         metadata=metadata,
         main_package=guess_main_package(metadata),
+        upstream_version=version,
         target=target,
         rpm_name=crate,
         license_files=["LIC1", "LIC2"],