diff --git a/images/linux/scripts/helpers/document.sh b/images/linux/scripts/helpers/document.sh
index e7311689c..9f6830efa 100644
--- a/images/linux/scripts/helpers/document.sh
+++ b/images/linux/scripts/helpers/document.sh
@@ -28,3 +28,15 @@ function DocumentInstalledItem {
 function DocumentInstalledItemIndent {
     WriteItem "  - $1"
 }
+
+function AddBlockquote {
+    WriteItem "> $1"
+}
+
+function StartCode {
+    WriteItem "``````"
+}
+
+function EndCode {
+    WriteItem "``````"
+}
diff --git a/images/linux/scripts/installers/php.sh b/images/linux/scripts/installers/php.sh
index f5f8b9733..0c4bbaabb 100644
--- a/images/linux/scripts/installers/php.sh
+++ b/images/linux/scripts/installers/php.sh
@@ -134,5 +134,17 @@ for version in $php_versions; do
     DocumentInstalledItem "PHP $version ($(php$version --version | head -n 1))"
 done
 
+# ubuntu 20.04 libzip-dev is libzip5 based and is not compatible libzip-dev of ppa:ondrej/php
+# see https://github.com/actions/virtual-environments/issues/1084
+if isUbuntu20 ; then
+  rm /etc/apt/sources.list.d/ondrej-ubuntu-php-focal.list
+  apt-get update
+  AddBlockquote "To use ppa:ondrej/php APT repository On Ubuntu 20.04 it is necessary to add it to the APT sources"
+  StartCode
+  WriteItem apt-add-repository ppa:ondrej/php -y
+  WriteItem apt-get update
+  EndCode
+fi
+
 DocumentInstalledItem "Composer  ($(composer --version))"
 DocumentInstalledItem "PHPUnit ($(phpunit --version))"