diff --git a/include/utils/LruCache.h b/include/utils/LruCache.h
index 20a379ecc..1741fb2e4 100644
--- a/include/utils/LruCache.h
+++ b/include/utils/LruCache.h
@@ -17,10 +17,9 @@
 #ifndef ANDROID_UTILS_LRU_CACHE_H
 #define ANDROID_UTILS_LRU_CACHE_H
 
+#include <memory>
 #include <unordered_set>
 
-#include <UniquePtr.h>
-
 #include "utils/TypeHelpers.h"  // hash_t
 
 namespace android {
@@ -91,7 +90,7 @@ private:
         return result;
     }
 
-    UniquePtr<LruCacheSet> mSet;
+    std::unique_ptr<LruCacheSet> mSet;
     OnEntryRemoved<TKey, TValue>* mListener;
     Entry* mOldest;
     Entry* mYoungest;
diff --git a/libutils/CallStack.cpp b/libutils/CallStack.cpp
index 0bfb520e9..699da7469 100644
--- a/libutils/CallStack.cpp
+++ b/libutils/CallStack.cpp
@@ -16,11 +16,12 @@
 
 #define LOG_TAG "CallStack"
 
+#include <memory>
+
 #include <utils/CallStack.h>
 #include <utils/Printer.h>
 #include <utils/Errors.h>
 #include <utils/Log.h>
-#include <UniquePtr.h>
 
 #include <backtrace/Backtrace.h>
 
@@ -40,7 +41,7 @@ CallStack::~CallStack() {
 void CallStack::update(int32_t ignoreDepth, pid_t tid) {
     mFrameLines.clear();
 
-    UniquePtr<Backtrace> backtrace(Backtrace::Create(BACKTRACE_CURRENT_PROCESS, tid));
+    std::unique_ptr<Backtrace> backtrace(Backtrace::Create(BACKTRACE_CURRENT_PROCESS, tid));
     if (!backtrace->Unwind(ignoreDepth)) {
         ALOGW("%s: Failed to unwind callstack.", __FUNCTION__);
     }