diff --git a/7.1/Dockerfile b/7.1/Dockerfile
index 958a00a..289920f 100644
--- a/7.1/Dockerfile
+++ b/7.1/Dockerfile
@@ -5,6 +5,7 @@ RUN pecl install xdebug && \
 	docker-php-ext-install pcntl sockets && \
 	docker-php-ext-enable xdebug && \
 	apt-get update && \
+	apt-get upgrade -y && \
 	apt-get install -y \
 		git \
 		wget \
diff --git a/7.2/Dockerfile b/7.2/Dockerfile
index 68ceccb..7da4f19 100644
--- a/7.2/Dockerfile
+++ b/7.2/Dockerfile
@@ -5,6 +5,7 @@ RUN pecl install xdebug && \
 	docker-php-ext-install pcntl sockets && \
 	docker-php-ext-enable xdebug && \
 	apt-get update && \
+	apt-get upgrade && \
 	apt-get install -y \
 		git \
 		wget \
diff --git a/latest/Dockerfile b/latest/Dockerfile
index 12b57f7..50058d6 100644
--- a/latest/Dockerfile
+++ b/latest/Dockerfile
@@ -5,6 +5,7 @@ RUN pecl install xdebug && \
 	docker-php-ext-install pcntl sockets && \
 	docker-php-ext-enable xdebug && \
 	apt-get update && \
+	apt-get upgrade && \
 	apt-get install -y \
 		git \
 		wget \