diff --git a/Dockerfile b/Dockerfile
index 7ab83bc..55a8900 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,8 +22,9 @@ RUN apk --no-cache add \
     openssl \
     openssl-dev \
     pcre-dev \
-    zlib-dev
-
+    zlib-dev \
+    patch
+    
 RUN ln -s /usr/bin/aclocal-1.16 /usr/bin/aclocal-1.15
 RUN ln -s /usr/bin/automake-1.16 /usr/bin/automake-1.15