diff --git a/examples/resize.cc b/examples/resize.cc
index deeb704..a14f6c0 100644
--- a/examples/resize.cc
+++ b/examples/resize.cc
@@ -54,7 +54,7 @@ int main(int argc, char **)
                 cout << data.get<string_view>() << endl;
 
                 struct Bert {
-                    uint16_t x, y;
+                    std::uint16_t x, y;
                 };
                 auto b = data.get_struct<Bert>();
                 cout << b.x << " " << b.y << endl;
@@ -64,7 +64,7 @@ int main(int argc, char **)
             exit(1);
         }
     } else {
-        size_t size = 1ULL * 4096 * 244140ULL;
+        std::size_t size = 1ULL * 4096 * 244140ULL;
         for (unsigned int n = 0;; ++n) {
             if (!(n % 16384)) {
                 size += 16384;
diff --git a/examples/typed.cc b/examples/typed.cc
index ef1e89c..bc328de 100644
--- a/examples/typed.cc
+++ b/examples/typed.cc
@@ -11,18 +11,18 @@ using namespace std;
 using namespace LMDBSafe;
 
 struct DNSResourceRecord {
-    string qname; // index
-    uint16_t qtype{ 0 };
-    uint32_t domain_id{ 0 }; // index
-    string content;
-    uint32_t ttl{ 0 };
-    string ordername; // index
+    std::string qname; // index
+    std::uint16_t qtype{ 0 };
+    std::uint32_t domain_id{ 0 }; // index
+    std::string content;
+    std::uint32_t ttl{ 0 };
+    std::string ordername; // index
     bool auth{ true };
 };
 
 struct DomainInfo {
-    string qname;
-    string master;
+    std::string qname;
+    std::string master;
 };
 
 template <class Archive> void serialize(Archive &ar, DomainInfo &g, const unsigned int version)
@@ -47,7 +47,7 @@ struct compound {
     std::string operator()(const DNSResourceRecord &rr)
     {
         std::string ret;
-        uint32_t id = htonl(rr.domain_id);
+        std::uint32_t id = htonl(rr.domain_id);
         ret.assign(reinterpret_cast<char *>(&id), 4);
         ret.append(rr.ordername);
         return ret;
@@ -56,8 +56,8 @@ struct compound {
 
 int main()
 {
-    TypedDBI<DNSResourceRecord, index_on<DNSResourceRecord, string, &DNSResourceRecord::qname>,
-        index_on<DNSResourceRecord, uint32_t, &DNSResourceRecord::domain_id>, index_on_function<DNSResourceRecord, string, compound>>
+    TypedDBI<DNSResourceRecord, index_on<DNSResourceRecord, std::string, &DNSResourceRecord::qname>,
+        index_on<DNSResourceRecord, std::uint32_t, &DNSResourceRecord::domain_id>, index_on_function<DNSResourceRecord, std::string, compound>>
         tdbi(getMDBEnv("./typed.lmdb", MDB_NOSUBDIR, 0600), "records");
 
     TypedDBI<DomainInfo, index_on<DomainInfo, string, &DomainInfo::qname>> tdomains(tdbi.getEnv(), "domains");
diff --git a/examples/view.cc b/examples/view.cc
index 53400aa..2daa628 100644
--- a/examples/view.cc
+++ b/examples/view.cc
@@ -12,12 +12,12 @@ void countDB(MDBEnv &env, MDBROTransaction &txn, const std::string &dbname)
     CPP_UTILITIES_UNUSED(env)
     auto db = txn->openDB(dbname, 0);
     auto cursor = txn->getCursor(db);
-    uint32_t count = 0;
+    std::uint32_t count = 0;
     MDBOutVal key, val;
     while (!cursor.get(key, val, count ? MDB_NEXT : MDB_FIRST)) {
-        cout << key.get<string>();
+        cout << key.get<std::string>();
         if (key.d_mdbval.mv_size == 4)
-            cout << " " << key.get<uint32_t>();
+            cout << " " << key.get<std::uint32_t>();
         cout << ": " << val.get<std::string>();
         cout << "\n";
         ++count;