diff --git a/tests/cv_traits_test.cpp b/tests/cv_traits_test.cpp
index 3e6463b..21b3dc7 100644
--- a/tests/cv_traits_test.cpp
+++ b/tests/cv_traits_test.cpp
@@ -61,7 +61,7 @@ int cpp_main(int argc, char* argv[])
 // define the number of failures expected for given compilers:
 #ifdef BOOST_MSVC
 unsigned int expected_failures = 3;
-#elif defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x520)
+#elif defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x530)
 unsigned int expected_failures = 1;
 #elif defined(__GNUC__)
 unsigned int expected_failures = 1; // cr_type doesn't compile
diff --git a/tests/is_same_test.cpp b/tests/is_same_test.cpp
index 4a53007..e6f7f2d 100644
--- a/tests/is_same_test.cpp
+++ b/tests/is_same_test.cpp
@@ -41,7 +41,7 @@ int cpp_main(int argc, char* argv[])
 #ifdef BOOST_MSVC
 // can't separate void and cv-void:
 unsigned int expected_failures = 1;
-#elif defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x520)
+#elif defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x530)
 unsigned int expected_failures = 2;
 #else
 unsigned int expected_failures = 0;
diff --git a/tests/object_type_traits_test.cpp b/tests/object_type_traits_test.cpp
index f947dd9..f90a36e 100644
--- a/tests/object_type_traits_test.cpp
+++ b/tests/object_type_traits_test.cpp
@@ -221,8 +221,12 @@ int cpp_main(int argc, char* argv[])
 #ifdef __BORLANDC__
 // can't handle enum's or classes that are POD's
 unsigned int expected_failures = 6;
-#elif defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x520)
+#elif defined(__SUNPRO_CC)
+#if (__SUNPRO_CC <= 0x520)
 unsigned int expected_failures = 55;
+#else // (__SUNPRO_CC <= 0x530)
+unsigned int expected_failures = 20;
+#endif
 #elif defined(__MWERKS__)
 unsigned int expected_failures = 10;
 #elif defined(BOOST_MSVC)