diff --git a/php-alpine/Dockerfile b/php-alpine/Dockerfile
index 31e1d9b..8000e15 100644
--- a/php-alpine/Dockerfile
+++ b/php-alpine/Dockerfile
@@ -6,7 +6,7 @@ ENV COMPOSER_MEMORY_LIMIT=-1
 
 
 
-RUN apk update && upk upgrade \
+RUN apk update && apk upgrade \
     && apk add --no-cache zip libzip-dev libpng-dev git \
     && curl -sS https://getcomposer.org/installer | php -- --version=${COMPOSER_VERSION} --install-dir=/usr/local/bin --filename=composer \
     && docker-php-ext-install mysqli pdo pdo_mysql bcmath zip gd \