diff --git a/php-unit-test/7.2/Dockerfile b/php-unit-test/7.2/Dockerfile
index f2ca7de59c45fa6f23377d98be286eea9bba101a..792e83414209711bf1e26c8961ce284f1f3c877b 100644
--- a/php-unit-test/7.2/Dockerfile
+++ b/php-unit-test/7.2/Dockerfile
@@ -12,10 +12,9 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.schema-version="1.0" \
       maintainer="Alan Nelson <alan.nelson@nebraska.edu>"
 
-RUN apk add --no-cache bash nodejs nodejs-npm libmcrypt-dev $PHPIZE_DEPS \
+RUN apk add --no-cache bash nodejs nodejs-npm $PHPIZE_DEPS \
     && pecl install xdebug redis \
-    && docker-php-ext-enable xdebug redis \
-    && docker-php-ext-install mcrypt \
+    && docker-php-ext-enable xdebug redis
     && apk del --no-cache $PHPIZE_DEPS
 RUN curl -o /usr/local/bin/composer https://getcomposer.org/composer.phar \
   && chmod 755 /usr/local/bin/composer