diff --git a/README.md b/README.md
index 5821b58..6a7495e 100644
--- a/README.md
+++ b/README.md
@@ -537,7 +537,7 @@ pure RV32I target, and install it in `/opt/riscv32i`:
 
     git clone https://github.com/riscv/riscv-gnu-toolchain riscv-gnu-toolchain-rv32i
     cd riscv-gnu-toolchain-rv32i
-    git checkout 06c957a
+    git checkout acfa480
 
     mkdir build; cd build
     ../configure --with-xlen=32 --with-arch=I --prefix=/opt/riscv32i
@@ -547,7 +547,7 @@ The commands will all be named using the prefix `riscv32-unknown-elf-`, which
 makes it easy to install them side-by-side with the regular riscv-tools, which
 are using the name prefix `riscv64-unknown-elf-` by default.
 
-*Note: This instructions are for git rev 06c957a (2016-01-20) of riscv-gnu-toolchain.*
+*Note: This instructions are for git rev acfa480 (2016-04-06) of riscv-gnu-toolchain.*
 
 
 Evaluation: Timing and Utilization on Xilinx 7-Series FPGAs