diff --git a/src/core/include/units/quantity.h b/src/core/include/units/quantity.h
index 93b64007..6c2daab5 100644
--- a/src/core/include/units/quantity.h
+++ b/src/core/include/units/quantity.h
@@ -383,7 +383,7 @@ public:
 };
 
 // CTAD
-#if !UNITS_COMP_CLANG || UNITS_COMP_CLANG > 14
+#if !UNITS_COMP_CLANG || UNITS_COMP_CLANG > 15
 template<typename D, typename U, typename Rep>
 explicit(false) quantity(Rep&&) -> quantity<D, U, Rep>;
 #endif
diff --git a/test/unit_test/static/quantity_test.cpp b/test/unit_test/static/quantity_test.cpp
index 47447b46..ccc0a9ca 100644
--- a/test/unit_test/static/quantity_test.cpp
+++ b/test/unit_test/static/quantity_test.cpp
@@ -273,7 +273,7 @@ static_assert(get_length_derived_quantity() == 1_q_m);
 // CTAD
 /////////
 
-#if UNITS_COMP_GCC >= 11 || UNITS_COMP_CLANG > 14
+#if UNITS_COMP_GCC >= 11 || UNITS_COMP_CLANG > 15
 static_assert(std::is_same_v<decltype(units::aliases::isq::si::m(123))::rep, int>);
 static_assert(std::is_same_v<decltype(units::aliases::isq::si::m(123.))::rep, double>);
 #endif