diff --git a/bitnami/mediawiki/1/debian-11/Dockerfile b/bitnami/mediawiki/1/debian-11/Dockerfile
index b1c9871a4b63..3d8918866553 100644
--- a/bitnami/mediawiki/1/debian-11/Dockerfile
+++ b/bitnami/mediawiki/1/debian-11/Dockerfile
@@ -4,10 +4,10 @@ ARG TARGETARCH
 
 LABEL com.vmware.cp.artifact.flavor="sha256:109c7d51bd69bb6b3df71017440c1ea0699454f81fe188056c083f0b57c96ea6" \
       org.opencontainers.image.base.name="docker.io/bitnami/minideb:bullseye" \
-      org.opencontainers.image.created="2023-04-22T23:19:29Z" \
+      org.opencontainers.image.created="2023-04-25T15:12:27Z" \
       org.opencontainers.image.description="Application packaged by VMware, Inc" \
       org.opencontainers.image.licenses="Apache-2.0" \
-      org.opencontainers.image.ref.name="1.39.3-debian-11-r7" \
+      org.opencontainers.image.ref.name="1.39.3-debian-11-r8" \
       org.opencontainers.image.title="mediawiki" \
       org.opencontainers.image.vendor="VMware, Inc." \
       org.opencontainers.image.version="1.39.3"
diff --git a/bitnami/mediawiki/1/debian-11/rootfs/opt/bitnami/scripts/libphp.sh b/bitnami/mediawiki/1/debian-11/rootfs/opt/bitnami/scripts/libphp.sh
index a9bd719ef266..9226d0523aeb 100644
--- a/bitnami/mediawiki/1/debian-11/rootfs/opt/bitnami/scripts/libphp.sh
+++ b/bitnami/mediawiki/1/debian-11/rootfs/opt/bitnami/scripts/libphp.sh
@@ -87,6 +87,7 @@ php_set_runtime_config() {
     ! is_empty_value "$PHP_MEMORY_LIMIT" && info "Setting PHP memory_limit option" && php_conf_set memory_limit "$PHP_MEMORY_LIMIT" "$conf_file"
     ! is_empty_value "$PHP_POST_MAX_SIZE" && info "Setting PHP post_max_size option" && php_conf_set post_max_size "$PHP_POST_MAX_SIZE" "$conf_file"
     ! is_empty_value "$PHP_UPLOAD_MAX_FILESIZE" && info "Setting PHP upload_max_filesize option" && php_conf_set upload_max_filesize "$PHP_UPLOAD_MAX_FILESIZE" "$conf_file"
+    ! is_empty_value "$PHP_OUTPUT_BUFFERING" && info "Setting PHP output_buffering option" && php_conf_set output_buffering "$PHP_OUTPUT_BUFFERING" "$conf_file"
 
     true
 }
diff --git a/bitnami/mediawiki/1/debian-11/rootfs/opt/bitnami/scripts/php-env.sh b/bitnami/mediawiki/1/debian-11/rootfs/opt/bitnami/scripts/php-env.sh
index 4de618688f75..c67a87029398 100644
--- a/bitnami/mediawiki/1/debian-11/rootfs/opt/bitnami/scripts/php-env.sh
+++ b/bitnami/mediawiki/1/debian-11/rootfs/opt/bitnami/scripts/php-env.sh
@@ -83,5 +83,6 @@ export PHP_MAX_INPUT_VARS="${PHP_MAX_INPUT_VARS:-}"
 export PHP_MEMORY_LIMIT="${PHP_MEMORY_LIMIT:-}"
 export PHP_POST_MAX_SIZE="${PHP_POST_MAX_SIZE:-}"
 export PHP_UPLOAD_MAX_FILESIZE="${PHP_UPLOAD_MAX_FILESIZE:-}"
+export PHP_OUTPUT_BUFFERING="8196"
 
 # Custom environment variables may be defined below
diff --git a/bitnami/mediawiki/README.md b/bitnami/mediawiki/README.md
index b617e80cd2bd..32b08c37a70c 100644
--- a/bitnami/mediawiki/README.md
+++ b/bitnami/mediawiki/README.md
@@ -279,6 +279,7 @@ To configure MediaWiki to send email using SMTP you can set the following enviro
 * `PHP_MEMORY_LIMIT`: Memory limit for PHP scripts. Default: **256M**
 * `PHP_POST_MAX_SIZE`: Maximum size for PHP POST requests. No default.
 * `PHP_UPLOAD_MAX_FILESIZE`: Maximum file size for PHP uploads. No default.
+* `PHP_OUTPUT_BUFFERING`: Size of the output buffer for PHP. Default: **8196**
 
 #### Example