diff --git a/daggermock-kotlin/src/main/java/it/cosenonjaviste/daggermock/DaggerMock.kt b/daggermock-kotlin/src/main/java/it/cosenonjaviste/daggermock/DaggerMock.kt
index 17a0266..fe07a8e 100644
--- a/daggermock-kotlin/src/main/java/it/cosenonjaviste/daggermock/DaggerMock.kt
+++ b/daggermock-kotlin/src/main/java/it/cosenonjaviste/daggermock/DaggerMock.kt
@@ -37,5 +37,11 @@ class DaggerMock<C>(val rule: DaggerMockRule<C>) {
             DaggerMock<C>(rule).init()
             return rule
         }
+
+        inline fun <reified C> ruleWithSpys(spyAllUnMockedDependencies: Boolean = false, vararg modules: Any, noinline init: DaggerMock<C>.() -> Unit = {}): DaggerMockRule<C> {
+            val rule = DaggerMockRule(spyAllUnMockedDependencies, C::class.java, *modules)
+            DaggerMock<C>(rule).init()
+            return rule
+        }
     }
 }
\ No newline at end of file
diff --git a/daggermock/src/main/java/it/cosenonjaviste/daggermock/DaggerMockRule.java b/daggermock/src/main/java/it/cosenonjaviste/daggermock/DaggerMockRule.java
index 138b334..f3a3442 100644
--- a/daggermock/src/main/java/it/cosenonjaviste/daggermock/DaggerMockRule.java
+++ b/daggermock/src/main/java/it/cosenonjaviste/daggermock/DaggerMockRule.java
@@ -37,12 +37,18 @@ public class DaggerMockRule<C> implements MethodRule {
     private ComponentClassWrapper<C> componentClass;
     private ComponentSetter<C> componentSetter;
     private BuilderCustomizer customizer;
+    private boolean spyUnMockedDependencies;
     private List<Object> modules = new ArrayList<>();
     private final List<DependentComponentInfo> dependencies = new ArrayList<>();
     private final Map<Class<?>, ObjectWrapper<?>> dependenciesWrappers = new HashMap<>();
     private final Map<Class<?>, ComponentSetter<?>> dependentComponentsSetters = new HashMap<>();
     private final OverriddenObjectsMap overriddenObjectsMap = new OverriddenObjectsMap();
 
+    public DaggerMockRule(boolean spyUnMockedDependencies, Class<C> componentClass, Object... modules) {
+        this(componentClass, modules);
+        this.spyUnMockedDependencies = spyUnMockedDependencies;
+    }
+
     public DaggerMockRule(Class<C> componentClass, Object... modules) {
         this.componentClass = new ComponentClassWrapper<>(componentClass);
         Collections.addAll(this.modules, modules);
@@ -123,7 +129,7 @@ private void setupComponent(Object target) {
         overriddenObjectsMap.init(target);
         overriddenObjectsMap.checkOverriddenInjectAnnotatedClass(modules);
 
-        ModuleOverrider moduleOverrider = new ModuleOverrider(overriddenObjectsMap);
+        ModuleOverrider moduleOverrider = new ModuleOverrider(overriddenObjectsMap, spyUnMockedDependencies);
 
         overriddenObjectsMap.checkOverridesInSubComponentsWithNoParameters(componentClass);
 
diff --git a/daggermock/src/main/java/it/cosenonjaviste/daggermock/ModuleOverrider.java b/daggermock/src/main/java/it/cosenonjaviste/daggermock/ModuleOverrider.java
index 1785377..a4acb94 100644
--- a/daggermock/src/main/java/it/cosenonjaviste/daggermock/ModuleOverrider.java
+++ b/daggermock/src/main/java/it/cosenonjaviste/daggermock/ModuleOverrider.java
@@ -42,13 +42,16 @@ public class ModuleOverrider {
 
     private final OverriddenObjectsMap overriddenObjectsMap;
 
+    private boolean spyUnMockedDependencies = false;
+
     public ModuleOverrider(Object target) {
-        this(new OverriddenObjectsMap());
+        this(new OverriddenObjectsMap(), false);
         overriddenObjectsMap.init(target);
     }
 
-    public ModuleOverrider(OverriddenObjectsMap overriddenObjectsMap) {
+    public ModuleOverrider(OverriddenObjectsMap overriddenObjectsMap, boolean spyUnMockedDependencies) {
         this.overriddenObjectsMap = overriddenObjectsMap;
+        this.spyUnMockedDependencies = spyUnMockedDependencies;
     }
 
     public <T> T override(final T module) {
@@ -56,14 +59,21 @@ public <T> T override(final T module) {
         Answer defaultAnswer = new Answer() {
             @Override
             public Object answer(InvocationOnMock invocation) throws Throwable {
+                Object obj = null;
                 Method method = invocation.getMethod();
                 Provider provider = overriddenObjectsMap.getProvider(method);
                 if (provider != null) {
-                    return provider.get();
+                    obj = provider.get();
                 } else {
                     method.setAccessible(true);
-                    return method.invoke(module, invocation.getArguments());
+                    Object originalObj = method.invoke(module, invocation.getArguments());
+                    if (spyUnMockedDependencies) {
+                        obj = Mockito.spy(originalObj);
+                    } else {
+                        obj = originalObj;
+                    }
                 }
+                return obj;
             }
         };
         return (T) Mockito.mock(module.getClass(), defaultAnswer);