diff --git a/cmake/toolchain/heptools-81d.cmake b/cmake/toolchain/heptools-81d.cmake
index c885b8b1c7b52e0e817bfd62ed24380830c42df1..8eadaa9a4a154b11a558ace8c1b5741481a5b72a 100644
--- a/cmake/toolchain/heptools-81d.cmake
+++ b/cmake/toolchain/heptools-81d.cmake
@@ -44,8 +44,8 @@ LCG_external_package(xapian 1.2.21
LCG_external_package(doxygen 1.8.9.1 )
LCG_external_package(expat 2.0.1 )
LCG_external_package(eigen 3.2.7 )
-#LCG_external_package(fastjet 3.1.1 )
LCG_external_package(fastjet 3.2.0 )
+LCG_external_package(fastjet 3.1.1 )
LCG_external_package(fftw 3.1.2 fftw3 )
LCG_external_package(Frontier_Client 2.8.12 frontier_client)
LCG_external_package(GCCXML 0.9.0_20131026 gccxml )
diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index 998c3d25373f9a00431099f4fa99aacc4dbd9fd8..12f01364f3fc98fa46adb4b38c6b1a9c7356db8b 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -425,7 +425,8 @@ LCGPackage_Add(
#---FastJet-----------------------------------------------------------------------------------------
LCGPackage_Add(
fastjet
- URL http://service-spi.web.cern.ch/service-spi/external/tarFiles/fastjet-${fastjet_native_version}.tar.gz
+# URL http://service-spi.web.cern.ch/service-spi/external/tarFiles/fastjet-${fastjet_native_version}.tar.gz
+ URL http://service-spi.web.cern.ch/service-spi/external/tarFiles/fastjet-<NATIVE_VERSION>.tar.gz
CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=<INSTALL_DIR> --enable-shared --enable-allplugins
)