diff --git a/README.md b/README.md
index 16d0489..40372c2 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ The C library is found in this directory after successful compilation
 and is named `libutf8proc.a` (for the static library) and
 `libutf8proc.so` (for the dynamic library).
 
-The Unicode version supported is 8.0.0.
+The Unicode version supported is 9.0.0.
 
 For Unicode normalizations, the following options are used: