diff --git a/externals/REFPROP-interop b/externals/REFPROP-interop
index 745611d..d513371 160000
--- a/externals/REFPROP-interop
+++ b/externals/REFPROP-interop
@@ -1 +1 @@
-Subproject commit 745611d6050cc544ff97e37a07d7cc7a257890be
+Subproject commit d51337196464e7f4958a7fae7fb0d0f12b223b25