diff --git a/cql3/functions/castas_fcts.cc b/cql3/functions/castas_fcts.cc
index eddfd44ddabe..74e824b47ed4 100644
--- a/cql3/functions/castas_fcts.cc
+++ b/cql3/functions/castas_fcts.cc
@@ -69,6 +69,16 @@ using bytes_opt = std::optional<bytes>;
 template<typename ToType, typename FromType>
 static data_value castas_fctn_simple(data_value from) {
     auto val_from = value_cast<FromType>(from);
+    // Workaround for https://github.com/boostorg/multiprecision/issues/553 (the additional bug discovered post-closing)
+    if constexpr (std::is_floating_point_v<ToType> && std::is_same_v<FromType, utils::multiprecision_int>) {
+        static auto min = utils::multiprecision_int(std::numeric_limits<ToType>::lowest());
+        static auto max = utils::multiprecision_int(std::numeric_limits<ToType>::max());
+        if (val_from < min) {
+            return -std::numeric_limits<ToType>::infinity();
+        } else if (val_from > max) {
+            return std::numeric_limits<ToType>::infinity();
+        }
+    }
     return static_cast<ToType>(val_from);
 }