diff --git a/boring-nginx/Dockerfile b/boring-nginx/Dockerfile
index d5bc257..5ac5414 100644
--- a/boring-nginx/Dockerfile
+++ b/boring-nginx/Dockerfile
@@ -43,6 +43,8 @@ RUN echo "@commuedge https://nl.alpinelinux.org/alpine/edge/community" >> /etc/a
  && cd /tmp/boringssl \
  && sed -n 's/\$avx = 0/\$avx = 2/p' crypto/*/asm/*.pl \
  && sed -n 's/\$addx = 0/\$addx = 1/p' crypto/*/asm/*.pl \
+ && sed -n 's/\$avx = 1/\$avx = 2/p' crypto/*/asm/*.pl \
+ && sed -n 's/\$shaext=0/\$shaext=1/p' crypto/*/asm/*.pl \
  && mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=Release .. \
  && make -j ${NB_CORES} && cd .. \
  && mkdir -p .openssl/lib/ && cd .openssl && ln -s ../include && cd .. \
diff --git a/boring-nginx/README.md b/boring-nginx/README.md
index 0582568..98bba37 100644
--- a/boring-nginx/README.md
+++ b/boring-nginx/README.md
@@ -7,7 +7,7 @@ This is nginx statically linked against BoringSSL, with embedded Brotli support.
 
 #### Features
 - Based on Alpine Linux.
-- nginx built against **BoringSSL** with AVX2 instructions.
+- nginx built against **BoringSSL** with SSE/SHA, and AVX2 SIMD-instructions.
 - Built using hardening gcc flags.
 - TTP/2 (+NPN) support.
 - Brotli compression support (and configured).