diff --git a/blog/Dockerfile b/blog/Dockerfile
index 5f90ea3..87289a2 100644
--- a/blog/Dockerfile
+++ b/blog/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.0-apache
+FROM php:7.4-apache
 
 RUN apt-get update \
  && apt-get install -y git zlib1g-dev \
diff --git a/formdemo/Dockerfile b/formdemo/Dockerfile
index 5f90ea3..87289a2 100644
--- a/formdemo/Dockerfile
+++ b/formdemo/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.0-apache
+FROM php:7.4-apache
 
 RUN apt-get update \
  && apt-get install -y git zlib1g-dev \
diff --git a/helloworld/Dockerfile b/helloworld/Dockerfile
index 5f90ea3..87289a2 100644
--- a/helloworld/Dockerfile
+++ b/helloworld/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.0-apache
+FROM php:7.4-apache
 
 RUN apt-get update \
  && apt-get install -y git zlib1g-dev \
diff --git a/i18ndemo/Dockerfile b/i18ndemo/Dockerfile
index 5f90ea3..87289a2 100644
--- a/i18ndemo/Dockerfile
+++ b/i18ndemo/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.0-apache
+FROM php:7.4-apache
 
 RUN apt-get update \
  && apt-get install -y git zlib1g-dev \
diff --git a/roledemo/Dockerfile b/roledemo/Dockerfile
index 5f90ea3..87289a2 100644
--- a/roledemo/Dockerfile
+++ b/roledemo/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.0-apache
+FROM php:7.4-apache
 
 RUN apt-get update \
  && apt-get install -y git zlib1g-dev \
diff --git a/userdemo/Dockerfile b/userdemo/Dockerfile
index 5f90ea3..87289a2 100644
--- a/userdemo/Dockerfile
+++ b/userdemo/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.0-apache
+FROM php:7.4-apache
 
 RUN apt-get update \
  && apt-get install -y git zlib1g-dev \