diff --git a/Dockerfile b/Dockerfile
index 2f7d2d7..682eb2a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,12 +20,16 @@ RUN \
     php83-pdo_pgsql \
     php83-pdo_sqlite \
     php83-pdo_mysql \
+    php83-opcache \
     php83-tokenizer && \
   echo "**** configure nginx ****" && \
   echo 'fastcgi_param  PHP_AUTH_USER      $remote_user; # Heimdall user authorization' >> \
     /etc/nginx/fastcgi_params && \
   echo 'fastcgi_param  PHP_AUTH_PW        $http_authorization; # Heimdall user authorization' >> \
     /etc/nginx/fastcgi_params && \
+  echo "**** configure php opcache ****" && \
+  echo 'opcache.validate_timestamps=0' >> \
+    /etc/php83/conf.d/00_opcache.ini && \
   echo "**** install heimdall ****" && \
   mkdir -p \
     /heimdall && \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 1807c48..2922e20 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -20,12 +20,16 @@ RUN \
     php83-pdo_pgsql \
     php83-pdo_sqlite \
     php83-pdo_mysql \
+    php83-opcache \
     php83-tokenizer && \
   echo "**** configure nginx ****" && \
   echo 'fastcgi_param  PHP_AUTH_USER      $remote_user; # Heimdall user authorization' >> \
     /etc/nginx/fastcgi_params && \
   echo 'fastcgi_param  PHP_AUTH_PW        $http_authorization; # Heimdall user authorization' >> \
     /etc/nginx/fastcgi_params && \
+  echo "**** configure php opcache ****" && \
+  echo 'opcache.validate_timestamps=0' >> \
+    /etc/php83/conf.d/00_opcache.ini && \
   echo "**** install heimdall ****" && \
   mkdir -p \
     /heimdall && \
diff --git a/readme-vars.yml b/readme-vars.yml
index f4776d7..207da3a 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -49,6 +49,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "07.03.24:", desc: "Enable the opcache and disable file revalidation."}
   - { date: "06.03.24:", desc: "Existing users should update: site-confs/default.conf - Cleanup default site conf." }
   - { date: "23.12.23:", desc: "Rebase to Alpine 3.19 with php 8.3."}
   - { date: "25.05.23:", desc: "Rebase to Alpine 3.18, deprecate armhf." }