diff --git a/Dockerfile b/Dockerfile
index a649d77..117b308 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,6 @@ RUN apt-get update && \
   dpkg -i packages-microsoft-prod.deb && \
   echo 'tzdata tzdata/Areas select Europe' | debconf-set-selections && \
   echo 'tzdata tzdata/Zones/Europe select Budapest' | debconf-set-selections && \
-  DEBIAN_FRONTEND="noninteractive" apt-get install –no-install-recommends --yes azure-cli npm python3-dev python3-pip python3-venv && \
+  DEBIAN_FRONTEND="noninteractive" apt-get install --no-install-recommends --yes azure-cli npm python3-dev python3-pip python3-venv && \
   npm i -g azure-functions-core-tools@4 --unsafe-perm true && \
   apt autoclean