diff --git a/millepede.spec b/millepede.spec
index 9a90b093c49..8a16f0b9f98 100644
--- a/millepede.spec
+++ b/millepede.spec
@@ -1,6 +1,6 @@
-### RPM external millepede V04-11-01
+### RPM external millepede V04-13-02
 Source: https://gitlab.desy.de/claus.kleinwort/millepede-ii/-/archive/%{realversion}/%{n}-ii-%{realversion}.tar.gz
-Requires: zlib
+Requires: zlib OpenBLAS
 
 %prep
 %setup -n %{n}-ii-%{realversion}
@@ -8,7 +8,10 @@ Requires: zlib
 %build
 make \
   ZLIB_INCLUDES_DIR="${ZLIB_ROOT}/include" \
-  ZLIB_LIBS_DIR="${ZLIB_ROOT}/lib"
+  ZLIB_LIBS_DIR="${ZLIB_ROOT}/lib" \
+  SUPPORT_LAPACK64=yes \
+  LAPACK64_LIBS_DIR="${OPENBLAS_ROOT}/lib" \
+  LAPACK64_LIB=openblas
 
 %install
 make install PREFIX=%{i}