diff --git a/README.md b/README.md
index b6811e0b45df4cb6f4997c0c2d6f9d52c16ad336..0308aa775ed29929ae2770393b4ee8059d0d54a2 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,10 @@ Validation Benchmark
 * chaospy
 * pytables
 * h5py
+
+### issue with file locking
+`cd ~`
+
+`nano .bashrc (write in the .bashrc file => export HDF5_USE_FILE_LOCKING='FALSE')`
+
+`source .bashrc`
\ No newline at end of file