diff --git a/cmake/toolchain/heptools-79.cmake b/cmake/toolchain/heptools-79.cmake
index e781db82f89c35fbe6cb332eb387ce376b7518bd..14b70c5625d174d9254b54352229966ffc6b40de 100644
--- a/cmake/toolchain/heptools-79.cmake
+++ b/cmake/toolchain/heptools-79.cmake
@@ -174,7 +174,7 @@ endif()
 set(MCGENPATH  MCGenerators)
 
 LCG_external_package(heputils       1.0.0          ${MCGENPATH}/heputils )
-LCG_external_package(mcutils        1.1.0          ${MCGENPATH}/mcutils )
+LCG_external_package(mcutils        1.1.0          ${MCGENPATH}/mcutils     heputils=1.0.0)
 
 LCG_external_package(madgraph5amc       2.2.2          ${MCGENPATH}/madgraph5amc )
 LCG_external_package(madgraph5amc       2.2.1          ${MCGENPATH}/madgraph5amc )