diff --git a/include/plusaes/plusaes.hpp b/include/plusaes/plusaes.hpp
index 85ccf84..174ea64 100755
--- a/include/plusaes/plusaes.hpp
+++ b/include/plusaes/plusaes.hpp
@@ -12,7 +12,7 @@
 
 /** Version number of plusaes.
  * 0x01020304 -> 1.2.3.4 */
-#define PLUSAES_VERSION 0x00090000
+#define PLUSAES_VERSION 0x00090100
 
 namespace plusaes {
 namespace detail {
diff --git a/unit_test/src/test-plusaes.cpp b/unit_test/src/test-plusaes.cpp
index a62f9f1..4f584fd 100644
--- a/unit_test/src/test-plusaes.cpp
+++ b/unit_test/src/test-plusaes.cpp
@@ -76,7 +76,13 @@ void test_encrypt_decrypt_cbc(const std::string & data, const std::vector<unsign
 } // no namespace
 
 TEST(AES, version) {
-    ASSERT_EQ(plusaes::version(), 0x00090000);
+    std::cout << "plusaes version: " <<
+        ((plusaes::version() >> 24) & 0xFF) << '.' <<
+        ((plusaes::version() >> 16) & 0xFF) << '.' <<
+        ((plusaes::version() >>  8) & 0xFF) << '.' <<
+        ((plusaes::version())       & 0xFF) << std::endl;
+
+    ASSERT_EQ(plusaes::version(), 0x00090100);
 }
 
 TEST(AES, sbox) {