diff --git a/5.4/Dockerfile b/5.4/Dockerfile
index ce9814c..1336124 100644
--- a/5.4/Dockerfile
+++ b/5.4/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/5.4/apache/Dockerfile b/5.4/apache/Dockerfile
index 2f7e218..2d35832 100644
--- a/5.4/apache/Dockerfile
+++ b/5.4/apache/Dockerfile
@@ -37,4 +37,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/5.4/fpm/Dockerfile b/5.4/fpm/Dockerfile
index d68fab3..30c1137 100644
--- a/5.4/fpm/Dockerfile
+++ b/5.4/fpm/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/5.5/Dockerfile b/5.5/Dockerfile
index 096e206..664498d 100644
--- a/5.5/Dockerfile
+++ b/5.5/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/5.5/apache/Dockerfile b/5.5/apache/Dockerfile
index c3f2f94..16a5c6c 100644
--- a/5.5/apache/Dockerfile
+++ b/5.5/apache/Dockerfile
@@ -37,4 +37,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/5.5/fpm/Dockerfile b/5.5/fpm/Dockerfile
index 0db10d8..43dd658 100644
--- a/5.5/fpm/Dockerfile
+++ b/5.5/fpm/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/5.6/Dockerfile b/5.6/Dockerfile
index 62223ef..eb495ae 100644
--- a/5.6/Dockerfile
+++ b/5.6/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/5.6/apache/Dockerfile b/5.6/apache/Dockerfile
index 1abeb9f..a5f3c6c 100644
--- a/5.6/apache/Dockerfile
+++ b/5.6/apache/Dockerfile
@@ -37,4 +37,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/5.6/fpm/Dockerfile b/5.6/fpm/Dockerfile
index 8cafe6e..e9986c2 100644
--- a/5.6/fpm/Dockerfile
+++ b/5.6/fpm/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.0/Dockerfile b/7.0/Dockerfile
index 6a1be5d..e0db146 100644
--- a/7.0/Dockerfile
+++ b/7.0/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.0/apache/Dockerfile b/7.0/apache/Dockerfile
index 8089ade..eecec2e 100644
--- a/7.0/apache/Dockerfile
+++ b/7.0/apache/Dockerfile
@@ -37,4 +37,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.0/fpm/Dockerfile b/7.0/fpm/Dockerfile
index 8f843f0..c447b09 100644
--- a/7.0/fpm/Dockerfile
+++ b/7.0/fpm/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.1/Dockerfile b/7.1/Dockerfile
index e95a812..d8f23db 100644
--- a/7.1/Dockerfile
+++ b/7.1/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.1/apache/Dockerfile b/7.1/apache/Dockerfile
index fbd315f..a1c864b 100644
--- a/7.1/apache/Dockerfile
+++ b/7.1/apache/Dockerfile
@@ -37,4 +37,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.1/fpm/Dockerfile b/7.1/fpm/Dockerfile
index af1baec..1445110 100644
--- a/7.1/fpm/Dockerfile
+++ b/7.1/fpm/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.2/Dockerfile b/7.2/Dockerfile
index b7fdf6e..0587402 100644
--- a/7.2/Dockerfile
+++ b/7.2/Dockerfile
@@ -35,4 +35,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.2/apache/Dockerfile b/7.2/apache/Dockerfile
index e7afd9f..cff14b0 100644
--- a/7.2/apache/Dockerfile
+++ b/7.2/apache/Dockerfile
@@ -36,4 +36,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/7.2/fpm/Dockerfile b/7.2/fpm/Dockerfile
index 222b8ed..7cd11da 100644
--- a/7.2/fpm/Dockerfile
+++ b/7.2/fpm/Dockerfile
@@ -35,4 +35,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1
diff --git a/Dockerfile b/Dockerfile
index ed97ca0..02e2b67 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -35,4 +35,4 @@ RUN buildDeps=" \
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \
     && ln -s $(composer config --global home) /root/composer
-ENV PATH $PATH:/root/composer/vendor/bin
+ENV PATH=$PATH:/root/composer/vendor/bin COMPOSER_ALLOW_SUPERUSER=1