docker: pip install -U

Dockerfile

@@ -19,7 +19,8 @@ RUN apt-get update && apt-get install -y \
         libsm6 \
         python3-opencv \
     && rm -rf /var/lib/apt/lists/* \
-    && pip install --no-cache-dir -r requirements.txt \
+    && pip install --no-cache-dir -U -r \
+        requirements.txt \
     && if [ "$RUN_TESTS" = "true" ]; then /extract/run_pytest.sh; else echo "Not running tests..."; fi
 
 WORKDIR /files

Dockerfile_only_txt

@@ -26,7 +26,7 @@ RUN apk add --no-cache \
         zlib-dev \
         jpeg-dev \
     ; fi \
-    && pip install --no-cache-dir \
+    && pip install --no-cache-dir -U \
         protobuf \
         qrcode \
         Pillow \