diff --git a/src/main/groovy/netflix/nebula/dependency/recommender/provider/DependencyLockProvider.groovy b/src/main/groovy/netflix/nebula/dependency/recommender/provider/DependencyLockProvider.groovy
index 366d894..1c5ac0a 100644
--- a/src/main/groovy/netflix/nebula/dependency/recommender/provider/DependencyLockProvider.groovy
+++ b/src/main/groovy/netflix/nebula/dependency/recommender/provider/DependencyLockProvider.groovy
@@ -15,8 +15,16 @@ class DependencyLockProvider extends FileBasedRecommendationProvider {
     @Override
     String getVersion(String org, String name) throws Exception {
         if(!recommendations) {
-            recommendations = new JsonSlurper().parse(input)
-                .collectEntries { [(it.key) : it.value.locked] }
+            final locks = new JsonSlurper().parse(input)
+            final isDependencyLock4Format = locks.every {
+                it.value.every {
+                    it.value instanceof Map
+                }
+            }
+
+            recommendations = (isDependencyLock4Format ? locks.collectEntries { it.value } : locks).collectEntries {
+                [(it.key) : it.value.locked]
+            }
         }
         recommendations[org + ':' + name]
     }
diff --git a/src/test/groovy/netflix/nebula/dependency/recommender/provider/DependencyLockProviderSpec.groovy b/src/test/groovy/netflix/nebula/dependency/recommender/provider/DependencyLockProviderSpec.groovy
index 043334a..68ac1b1 100644
--- a/src/test/groovy/netflix/nebula/dependency/recommender/provider/DependencyLockProviderSpec.groovy
+++ b/src/test/groovy/netflix/nebula/dependency/recommender/provider/DependencyLockProviderSpec.groovy
@@ -7,7 +7,7 @@ import spock.lang.Specification
 class DependencyLockProviderSpec extends Specification {
     @Rule TemporaryFolder projectDir
 
-    def 'dependency locks provide recommendations'() {
+    def 'v3 dependency locks provide recommendations'() {
         setup:
         def recommender = new DependencyLockProvider()
 
@@ -26,4 +26,26 @@ class DependencyLockProviderSpec extends Specification {
         recommender.getVersion('commons-logging', 'commons-logging') == '1.1.1'
         recommender.getVersion('commons-configuration', 'commons-configuration') == '1.1.2'
     }
+
+    def 'v4 dependency locks provide recommendations'() {
+        setup:
+        def recommender = new DependencyLockProvider()
+
+        def file = projectDir.newFile()
+        file << '''
+        {
+          "compile": {
+            "commons-logging:commons-logging": { "locked": "1.1.1", "requested": "1.1.+" },
+            "commons-configuration:commons-configuration": { "locked": "1.1.2" }
+          }
+        }
+        '''
+
+        when:
+        recommender.setFile(file)
+
+        then:
+        recommender.getVersion('commons-logging', 'commons-logging') == '1.1.1'
+        recommender.getVersion('commons-configuration', 'commons-configuration') == '1.1.2'
+    }
 }