diff --git a/Dockerfile b/Dockerfile
index a3f5c8c..2ae7293 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,8 +4,9 @@ FROM alpine:3.12
 RUN apk add --update --no-cache git py3-six py3-pygments py3-yaml py3-gevent \
       libstdc++ py3-colorama py3-requests py3-icu py3-redis
 ## building missing python packages
+COPY requirements.txt /tmp
 RUN apk add --no-cache --virtual build-deps py3-pip g++ python3-dev \
-    && pip3 install --no-cache-dir --upgrade -r requirements.txt \
+    && pip3 install --no-cache-dir --upgrade -r /tmp/requirements.txt \
     && pip3 install --no-cache-dir rapidfuzz colored polyglot pycld2 \
     && apk del build-deps
 ## copying