diff --git a/releng/build-scripts/build/otdt_prerequisites-hipp.sh b/releng/build-scripts/build/otdt_prerequisites-hipp.sh
index 66ef6f3..e698758 100644
--- a/releng/build-scripts/build/otdt_prerequisites-hipp.sh
+++ b/releng/build-scripts/build/otdt_prerequisites-hipp.sh
@@ -57,8 +57,8 @@
 SDK_QUALIFIER=${SDK_QUALIFIER:="I20230605-0440"}
 
 # used only locally (components of the ECLIPSE_SDK_TGZ path):
-EVERSION=${EVERSION:="4.28RC2a"}
-DROP=${DROPS4}/${DROP:="S-4.28RC2a-202306050440"}
+EVERSION=${EVERSION:="4.28"}
+DROP=${DROPS4}/${DROP:="R-4.28-202306050440"}
 
 # EXPORT: archive file of the base eclipse SDK build:
 ECLIPSE_SDK_TGZ=${DROP}/eclipse-SDK-${EVERSION}-linux-gtk-${ARCH}.tar.gz