diff --git a/README.md b/README.md
index 04379b86..6094da18 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ On a Skylake processor, the parsing speeds (in GB/s) of various processors on th
 ## Requirements
 
 - We support platforms like Linux or macOS, as well as Windows through Visual Studio 2017 or later.
-- A processor with AVX2 (i.e., Intel processors starting with the Haswell microarchitecture released 2013, and processors from AMD starting with the Ryzen)
+- A processor with AVX2 (i.e., Intel processors starting with the Haswell microarchitecture released 2013 and AMD processors starting with the Zen microarchitecture released 2017).
 - A recent C++ compiler (e.g., GNU GCC or LLVM CLANG or Visual Studio 2017), we assume C++17. GNU GCC 7 or better or LLVM's clang 6 or better.
 - Some benchmark scripts assume bash and other common utilities, but they are optional.
 
@@ -194,7 +194,7 @@ make test
 
 ## Usage (CMake on Windows using Visual Studio)
 
-We are assuming that you have a common Windows PC with at least Visual Studio 2017, and an x64 processor with AVX2 support (2013 Haswell or later).
+We assume you have a common Windows PC with at least Visual Studio 2017 and an x64 processor with AVX2 support (2013 Intel Haswell or later).
 
 - Grab the simdjson code from GitHub, e.g., by cloning it using [GitHub Desktop](https://desktop.github.com/).
 - Install [CMake](https://cmake.org/download/). When you install it, make sure to ask that `cmake` be made available from the command line. Please choose a recent version of cmake.