diff --git a/src/package-manifest.test.ts b/src/package-manifest.test.ts
index e0270b8..08c02cc 100644
--- a/src/package-manifest.test.ts
+++ b/src/package-manifest.test.ts
@@ -67,7 +67,7 @@ describe('package-manifest', () => {
             b: '^2.0.0',
             c: '~4.3.0',
             d: 'workspace:^',
-            e: 'npm:a@^2.0.0',
+            e: 'npm:@a/abc@^2.0.0',
           },
         };
         const validated = {
@@ -80,7 +80,7 @@ describe('package-manifest', () => {
             b: '^2.0.0',
             c: '~4.3.0',
             d: 'workspace:^',
-            e: 'npm:a@^2.0.0',
+            e: 'npm:@a/abc@^2.0.0',
           },
           peerDependencies: {},
         };
@@ -317,7 +317,9 @@ describe('package-manifest', () => {
             name: 'foo',
             version: '1.0.0',
             peerDependencies: {
-              a: 12345,
+              a: 'npm:@foo',
+              b: 'npm:foo@',
+              c: '12345',
             },
           }),
         );
diff --git a/src/package-manifest.ts b/src/package-manifest.ts
index 94a1613..6451c65 100644
--- a/src/package-manifest.ts
+++ b/src/package-manifest.ts
@@ -174,7 +174,8 @@ function isValidPackageManifestDependencyValue(
   try {
     const redirectedDependencyMatch = redirectedDependencyRegexp.exec(version);
 
-    if (!redirectedDependencyMatch || redirectedDependencyMatch.length < 3) {
+    /* istanbul ignore if */
+    if (!redirectedDependencyMatch) {
       return false;
     }
 
@@ -184,6 +185,7 @@ function isValidPackageManifestDependencyValue(
       isValidPackageManifestVersionField(redirectedVersion)
     );
   } catch (e) {
+    /* istanbul ignore next */
     return false;
   }
 }