diff --git a/tests/dockerfiles/php53/3_test.sh b/tests/dockerfiles/php53/3_test.sh
index 795f6c3..1f55e8c 100755
--- a/tests/dockerfiles/php53/3_test.sh
+++ b/tests/dockerfiles/php53/3_test.sh
@@ -1,7 +1,7 @@
 # Run tests inside container.
 command=$(cat <<-END
 mkdir --parents "/tmp/php-curl-class" &&
-rsync --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
+rsync --delete --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
 cd "/tmp/php-curl-class" &&
 export TRAVIS_PHP_VERSION="5.3" &&
 (
diff --git a/tests/dockerfiles/php54/3_test.sh b/tests/dockerfiles/php54/3_test.sh
index 9bdbb9e..84684ce 100755
--- a/tests/dockerfiles/php54/3_test.sh
+++ b/tests/dockerfiles/php54/3_test.sh
@@ -1,7 +1,7 @@
 # Run tests inside container.
 command=$(cat <<-END
 mkdir --parents "/tmp/php-curl-class" &&
-rsync --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
+rsync --delete --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
 cd "/tmp/php-curl-class" &&
 export TRAVIS_PHP_VERSION="5.4" &&
 (
diff --git a/tests/dockerfiles/php55/3_test.sh b/tests/dockerfiles/php55/3_test.sh
index 86fbfc7..38f54c9 100755
--- a/tests/dockerfiles/php55/3_test.sh
+++ b/tests/dockerfiles/php55/3_test.sh
@@ -1,7 +1,7 @@
 # Run tests inside container.
 command=$(cat <<-END
 mkdir --parents "/tmp/php-curl-class" &&
-rsync --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
+rsync --delete --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
 cd "/tmp/php-curl-class" &&
 export TRAVIS_PHP_VERSION="5.5" &&
 (
diff --git a/tests/dockerfiles/php56/3_test.sh b/tests/dockerfiles/php56/3_test.sh
index 5441411..ea0322b 100755
--- a/tests/dockerfiles/php56/3_test.sh
+++ b/tests/dockerfiles/php56/3_test.sh
@@ -1,7 +1,7 @@
 # Run tests inside container.
 command=$(cat <<-END
 mkdir --parents "/tmp/php-curl-class" &&
-rsync --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
+rsync --delete --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
 cd "/tmp/php-curl-class" &&
 export TRAVIS_PHP_VERSION="5.6" &&
 (
diff --git a/tests/dockerfiles/php70/3_test.sh b/tests/dockerfiles/php70/3_test.sh
index 3ae58dd..b2d7759 100755
--- a/tests/dockerfiles/php70/3_test.sh
+++ b/tests/dockerfiles/php70/3_test.sh
@@ -1,7 +1,7 @@
 # Run tests inside container.
 command=$(cat <<-END
 mkdir --parents "/tmp/php-curl-class" &&
-rsync --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
+rsync --delete --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
 cd "/tmp/php-curl-class" &&
 export TRAVIS_PHP_VERSION="7.0" &&
 (
diff --git a/tests/dockerfiles/php71/3_test.sh b/tests/dockerfiles/php71/3_test.sh
index 09f4565..cc01473 100755
--- a/tests/dockerfiles/php71/3_test.sh
+++ b/tests/dockerfiles/php71/3_test.sh
@@ -1,7 +1,7 @@
 # Run tests inside container.
 command=$(cat <<-END
 mkdir --parents "/tmp/php-curl-class" &&
-rsync --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
+rsync --delete --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
 cd "/tmp/php-curl-class" &&
 export TRAVIS_PHP_VERSION="7.1" &&
 (
diff --git a/tests/dockerfiles/php72/3_test.sh b/tests/dockerfiles/php72/3_test.sh
index 6e73a6d..df3d957 100755
--- a/tests/dockerfiles/php72/3_test.sh
+++ b/tests/dockerfiles/php72/3_test.sh
@@ -1,7 +1,7 @@
 # Run tests inside container.
 command=$(cat <<-END
 mkdir --parents "/tmp/php-curl-class" &&
-rsync --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
+rsync --delete --exclude=".git" --exclude="vendor" --links --recursive "/data/" "/tmp/php-curl-class/" &&
 cd "/tmp/php-curl-class" &&
 export TRAVIS_PHP_VERSION="7.2" &&
 (