diff --git a/pkg/helper/helper.go b/pkg/helper/helper.go
index 2c16de1..6a96cc2 100644
--- a/pkg/helper/helper.go
+++ b/pkg/helper/helper.go
@@ -155,7 +155,9 @@ func GetCopyright(content string) string {
 
 		if strings.EqualFold(copyrightLookup, tokens[0]) {
 			cr[matchLevel2] = line
-			if re.MatchString(tokens[1]) {
+			has_multiple_tokens := len(tokens) > 1
+
+			if has_multiple_tokens && re.MatchString(tokens[1]) {
 				cr[matchLevel1] = line
 			}
 		}
diff --git a/pkg/modules/gem/helper.go b/pkg/modules/gem/helper.go
index 0e47eb9..5a72877 100644
--- a/pkg/modules/gem/helper.go
+++ b/pkg/modules/gem/helper.go
@@ -564,7 +564,7 @@ func isDuplicate(value string, spec Spec) bool {
 	return skip
 }
 
-//  Builds Dependency Tree from Gemfile.lock
+// Builds Dependency Tree from Gemfile.lock
 func BuildLockDependencyTree(rows []string) {
 
 	var startIndex, specPosition int
diff --git a/pkg/modules/yarn/handler.go b/pkg/modules/yarn/handler.go
index 2799959..c2fd6a8 100644
--- a/pkg/modules/yarn/handler.go
+++ b/pkg/modules/yarn/handler.go
@@ -94,7 +94,7 @@ func (m *yarn) SetRootModule(path string) error {
 }
 
 // GetRootModule return
-//root package information ex. Name, Version
+// root package information ex. Name, Version
 func (m *yarn) GetRootModule(path string) (*models.Module, error) {
 	r := reader.New(filepath.Join(path, m.metadata.Manifest[0]))
 	pkResult, err := r.ReadJson()
@@ -207,15 +207,16 @@ func (m *yarn) buildDependencies(path string, deps []dependency) ([]models.Modul
 				if name == "optionalDependencies:" {
 					continue
 				}
-
-				version := strings.TrimSuffix(strings.TrimPrefix(strings.TrimSpace(ar[1]), "\""), "\"")
-				if extractVersion(version) == "*" {
-					continue
-				}
-				mod.Modules[name] = &models.Module{
-					Name:     name,
-					Version:  extractVersion(version),
-					CheckSum: &models.CheckSum{Content: []byte(fmt.Sprintf("%s-%s", name, version))},
+				if len(ar) > 1 {
+					version := strings.TrimSuffix(strings.TrimPrefix(strings.TrimSpace(ar[1]), "\""), "\"")
+					if extractVersion(version) == "*" {
+						continue
+					}
+					mod.Modules[name] = &models.Module{
+						Name:     name,
+						Version:  extractVersion(version),
+						CheckSum: &models.CheckSum{Content: []byte(fmt.Sprintf("%s-%s", name, version))},
+					}
 				}
 			}
 		}
@@ -390,12 +391,13 @@ func appendNestedDependencies(deps []dependency) []dependency {
 				if name == "optionalDependencies:" {
 					continue
 				}
-
-				version := strings.TrimSuffix(strings.TrimPrefix(strings.TrimSpace(ar[1]), "\""), "\"")
-				if extractVersion(version) == "*" {
-					continue
+				if len(ar) > 1 {
+					version := strings.TrimSuffix(strings.TrimPrefix(strings.TrimSpace(ar[1]), "\""), "\"")
+					if extractVersion(version) == "*" {
+						continue
+					}
+					allDeps = append(allDeps, dependency{Name: name, Version: extractVersion(version)})
 				}
-				allDeps = append(allDeps, dependency{Name: name, Version: extractVersion(version)})
 			}
 		}
 	}