diff --git a/fastlib/branches/fastlib-stl/CMakeLists.txt b/fastlib/branches/fastlib-stl/CMakeLists.txt
index e21041d7cd..dc9fbcecb6 100644
--- a/fastlib/branches/fastlib-stl/CMakeLists.txt
+++ b/fastlib/branches/fastlib-stl/CMakeLists.txt
@@ -10,7 +10,7 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/CMake")
 
 find_package(LAPACK REQUIRED)  # LAPACK finds BLAS as a dependency
 find_package(Pthreads REQUIRED)
-find_package(Armadillo 0.9.6 REQUIRED)
+find_package(Armadillo 0.9.90 REQUIRED)
 
 # unfortunately this configuration variable is necessary and will need to be
 # updated as time goes on and new versions are released