diff --git a/deps/ox/src/ox/std/vector.hpp b/deps/ox/src/ox/std/vector.hpp
index 30f5a24a..6ab8005e 100644
--- a/deps/ox/src/ox/std/vector.hpp
+++ b/deps/ox/src/ox/std/vector.hpp
@@ -310,10 +310,10 @@ class Vector: detail::VectorAllocator<T, SmallVectorSize> {
 		Result<const T&> front() const noexcept;
 
 		[[nodiscard]]
-		Result<T&> back() noexcept;
+		constexpr Result<T&> back() noexcept;
 
 		[[nodiscard]]
-		Result<const T&> back() const noexcept;
+		constexpr Result<const T&> back() const noexcept;
 
 		[[nodiscard]]
 		constexpr std::size_t size() const noexcept;
@@ -501,7 +501,7 @@ Result<const T&> Vector<T, SmallVectorSize>::front() const noexcept {
 }
 
 template<typename T, std::size_t SmallVectorSize>
-Result<T&> Vector<T, SmallVectorSize>::back() noexcept {
+constexpr Result<T&> Vector<T, SmallVectorSize>::back() noexcept {
 	if (!m_size) {
 		AllocAlias<T> v;
 		return {*reinterpret_cast<T*>(&v), OxError(1)};
@@ -510,7 +510,7 @@ Result<T&> Vector<T, SmallVectorSize>::back() noexcept {
 }
 
 template<typename T, std::size_t SmallVectorSize>
-Result<const T&> Vector<T, SmallVectorSize>::back() const noexcept {
+constexpr Result<const T&> Vector<T, SmallVectorSize>::back() const noexcept {
 	if (!m_size) {
 		AllocAlias<T> v;
 		return {*reinterpret_cast<T*>(&v), OxError(1)};