diff --git a/board/rockchip/evb_rk3399/README b/board/rockchip/evb_rk3399/README
index 64698219872..ea3258cf378 100644
--- a/board/rockchip/evb_rk3399/README
+++ b/board/rockchip/evb_rk3399/README
@@ -35,12 +35,6 @@ Get the Source and prebuild binary
   > git clone https://github.com/rockchip-linux/rkbin.git
   > git clone https://github.com/rockchip-linux/rkdeveloptool.git
 
-Get some prerequisites
-======================
-
-You need the Python elftools.elf.elffile library for make_fit_atf.py to work:
-
-  > sudo apt-get install python-pyelftools
 
 Compile ATF
 ===========
diff --git a/doc/README.rockchip b/doc/README.rockchip
index 02e2497b158..8ccbb872645 100644
--- a/doc/README.rockchip
+++ b/doc/README.rockchip
@@ -123,10 +123,6 @@ For example:
 
    Option 2: Package the image with SPL:
 
-   - We need the Python elftools.elf.elffile library for make_fit_atf.py to work
-
-     => sudo apt-get install python-pyelftools
-
    - Export cross compiler path for aarch64
 
    - Compile ATF