diff --git a/.travis.yml b/.travis.yml
index 5d46c76a2..edd6515d1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -619,27 +619,27 @@ matrix:
 
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=c++14 TEST_SUITE=special_fun
-      osx_image: xcode9.3
+      osx_image: xcode11
 
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=c++14 TEST_SUITE=distribution_tests
-      osx_image: xcode9.3
+      osx_image: xcode11
 
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=c++14 TEST_SUITE=misc
-      osx_image: xcode9.3
+      osx_image: xcode11
 
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=c++14 TEST_SUITE=quadrature
-      osx_image: xcode9.3
+      osx_image: xcode11
 
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=c++14 TEST_SUITE=float128_tests
-      osx_image: xcode9.3
+      osx_image: xcode11
 
     - os: osx
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=c++14 TEST_SUITE=../example//examples
-      osx_image: xcode9.3
+      osx_image: xcode11
 
 
 install:
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 06992734c..c824b3282 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -113,7 +113,7 @@ test-suite special_fun :
    [ run test_1F1_log.cpp ../../test/build//boost_unit_test_framework : : : release [ requires cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_smart_ptr ] <define>TEST=4 release <toolset>clang:<cxxflags>-Wno-literal_range : test_1F1_log_long_double ]
    [ run test_1F1_log.cpp ../../test/build//boost_unit_test_framework : : : release [ requires cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_smart_ptr ] <define>TEST=5 <toolset>clang:<cxxflags>-Wno-literal_range : test_1F1_log_real_concept ]
    # pFq:
-   [ run test_1F1.cpp ../../test/build//boost_unit_test_framework : : : [ requires cxx11_hdr_initializer_list cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_smart_ptr ] <define>TEST=2 release <toolset>clang:<cxxflags>-Wno-literal_range : test_1F1_float ]
+   [ run test_pFq.cpp ../../test/build//boost_unit_test_framework : : : [ requires cxx11_hdr_initializer_list cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_smart_ptr ] <define>TEST=2 release <toolset>clang:<cxxflags>-Wno-literal_range : test_pFq_float ]
    [ run test_pFq.cpp ../../test/build//boost_unit_test_framework : : : [ requires cxx11_hdr_initializer_list cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_smart_ptr ] <define>TEST=3 release <toolset>clang:<cxxflags>-Wno-literal_range : test_pFq_double ]
    [ run test_pFq.cpp ../../test/build//boost_unit_test_framework : : : [ requires cxx11_hdr_initializer_list cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_smart_ptr ] <define>TEST=4 release <toolset>clang:<cxxflags>-Wno-literal_range : test_pFq_long_double ]
    [ run test_pFq.cpp ../../test/build//boost_unit_test_framework : : : [ requires cxx11_hdr_initializer_list cxx11_auto_declarations cxx11_lambdas cxx11_unified_initialization_syntax cxx11_smart_ptr ] <define>TEST=5 release <toolset>clang:<cxxflags>-Wno-literal_range : test_pFq_real_concept ]
diff --git a/test/hypergeometric_1F1_big_double_limited.ipp b/test/hypergeometric_1F1_big_double_limited.ipp
index 9bca434d2..3aff79bbc 100644
--- a/test/hypergeometric_1F1_big_double_limited.ipp
+++ b/test/hypergeometric_1F1_big_double_limited.ipp
@@ -6,9 +6,9 @@
       { SC_(9.6886760729830712080001831054687500000000e-06), SC_(-1.2525131835937500000000000000000000000000e+03), SC_(-1.0437607421875000000000000000000000000000e+03), SC_(1.0000174610171120995494972331285845784973e+00) },
       { SC_(-9.1337614555042634378878574352711439132690e-13), SC_(-1.2525131835937500000000000000000000000000e+03), SC_(-1.0437607421875000000000000000000000000000e+03), SC_(9.9999999999835391995458077011747081732328e-01) },
       { SC_(9.1337571186955734958701214054599404335022e-13), SC_(-1.2525131835937500000000000000000000000000e+03), SC_(-1.0437607421875000000000000000000000000000e+03), SC_(1.0000000000016460792638453549919301101979e+00) },
-      { { std::ldexp((double)10485392221989376, -40), std::ldexp((double)-11440692920695040, -40), std::ldexp((double)15790527852544000, -44), SC_(1.18289892801537469540400591236035802241505227e+161) } },
-      { { std::ldexp((double)10485980564770816, -40), std::ldexp((double)-10424015334037760, -40), std::ldexp((double)12850940076032000, -44), SC_(-5.63691240015269602721075116789607623755153984e-99) } },
-      { { std::ldexp((double)10485102088130304, -40), std::ldexp((double)-12174307949802496, -40), std::ldexp((double)17027372515328000, -44), SC_(-619367491691927041975872.474550388407917992627) } },
+      { { static_cast<T>(std::ldexp((double)10485392221989376, -40)), static_cast<T>(std::ldexp((double)-11440692920695040, -40)), static_cast<T>(std::ldexp((double)15790527852544000, -44)), SC_(1.18289892801537469540400591236035802241505227e+161) } },
+      { { static_cast<T>(std::ldexp((double)10485980564770816, -40)), static_cast<T>(std::ldexp((double)-10424015334037760, -40)), static_cast<T>(std::ldexp((double)12850940076032000, -44)), SC_(-5.63691240015269602721075116789607623755153984e-99) } },
+      { { static_cast<T>(std::ldexp((double)10485102088130304, -40)), static_cast<T>(std::ldexp((double)-12174307949802496, -40)), static_cast<T>(std::ldexp((double)17027372515328000, -44)), SC_(-619367491691927041975872.474550388407917992627) } },
    }};
 //#undef SC_
 
diff --git a/test/test_pFq.hpp b/test/test_pFq.hpp
index 2980e43e3..dafdbb11d 100644
--- a/test/test_pFq.hpp
+++ b/test/test_pFq.hpp
@@ -104,6 +104,8 @@ void check_pFq_result(const T& result, const T& norm, const T& expect, const std
 template <class T>
 void test_spots_1F0(T, const char*)
 {
+   using std::pow;
+   
    T tolerance = boost::math::tools::epsilon<T>() * 1000;
 
    BOOST_CHECK_CLOSE(boost::math::hypergeometric_pFq({ T(-3) }, {}, T(2)), T(-1), tolerance);