diff --git a/extractor/filesystem/language/javascript/yarnlock/testdata/no-version.v1.lock b/extractor/filesystem/language/javascript/yarnlock/testdata/no-version.v1.lock
new file mode 100644
index 00000000..0f588197
--- /dev/null
+++ b/extractor/filesystem/language/javascript/yarnlock/testdata/no-version.v1.lock
@@ -0,0 +1,8 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+balanced-match:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
+  integrity sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==
diff --git a/extractor/filesystem/language/javascript/yarnlock/yarnlock-v1_test.go b/extractor/filesystem/language/javascript/yarnlock/yarnlock-v1_test.go
index 7ea1d47b..eac5cf77 100644
--- a/extractor/filesystem/language/javascript/yarnlock/yarnlock-v1_test.go
+++ b/extractor/filesystem/language/javascript/yarnlock/yarnlock-v1_test.go
@@ -50,6 +50,22 @@ func TestExtractor_Extract_v1(t *testing.T) {
 				},
 			},
 		},
+		{
+			Name: "package with no version in header",
+			InputConfig: extracttest.ScanInputMockConfig{
+				Path: "testdata/no-version.v1.lock",
+			},
+			WantInventory: []*extractor.Inventory{
+				{
+					Name:      "balanced-match",
+					Version:   "1.0.2",
+					Locations: []string{"testdata/no-version.v1.lock"},
+					SourceCode: &extractor.SourceCodeIdentifier{
+						Commit: "",
+					},
+				},
+			},
+		},
 		{
 			Name: "two packages",
 			InputConfig: extracttest.ScanInputMockConfig{
diff --git a/extractor/filesystem/language/javascript/yarnlock/yarnlock.go b/extractor/filesystem/language/javascript/yarnlock/yarnlock.go
index b5abf43a..958d84c2 100644
--- a/extractor/filesystem/language/javascript/yarnlock/yarnlock.go
+++ b/extractor/filesystem/language/javascript/yarnlock/yarnlock.go
@@ -118,6 +118,7 @@ func groupYarnPackageDescriptions(ctx context.Context, scanner *bufio.Scanner) (
 func extractYarnPackageName(header string) string {
 	// Header format: @my-scope/my-first-package@my-scope/my-first-package#commit=hash
 	str := strings.TrimPrefix(header, "\"")
+	str = strings.TrimSuffix(str, ":")
 	str, _, _ = strings.Cut(str, ",")
 
 	isScoped := strings.HasPrefix(str, "@")