diff --git a/5.4/Dockerfile b/5.4/Dockerfile
index fe84568..f9dd141 100644
--- a/5.4/Dockerfile
+++ b/5.4/Dockerfile
@@ -20,9 +20,10 @@ RUN buildDeps=" \
         libpng12-dev \
         libpq-dev \
         libxml2-dev \
+        libxslt1-dev \
     " \
     && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $buildDeps $runtimeDeps \
-    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli pdo_mysql pdo_pgsql pgsql soap zip \
+    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli pdo_mysql pdo_pgsql pgsql soap xsl zip \
     && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
     && docker-php-ext-install gd \
     && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
diff --git a/5.4/apache/Dockerfile b/5.4/apache/Dockerfile
index d417eb6..9d6278d 100644
--- a/5.4/apache/Dockerfile
+++ b/5.4/apache/Dockerfile
@@ -20,9 +20,10 @@ RUN buildDeps=" \
         libpng12-dev \
         libpq-dev \
         libxml2-dev \
+        libxslt1-dev \
     " \
     && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $buildDeps $runtimeDeps \
-    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli pdo_mysql pdo_pgsql pgsql soap zip \
+    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli pdo_mysql pdo_pgsql pgsql soap xsl zip \
     && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
     && docker-php-ext-install gd \
     && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
diff --git a/5.4/fpm/Dockerfile b/5.4/fpm/Dockerfile
index a25c648..2fec89a 100644
--- a/5.4/fpm/Dockerfile
+++ b/5.4/fpm/Dockerfile
@@ -20,9 +20,10 @@ RUN buildDeps=" \
         libpng12-dev \
         libpq-dev \
         libxml2-dev \
+        libxslt1-dev \
     " \
     && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $buildDeps $runtimeDeps \
-    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli pdo_mysql pdo_pgsql pgsql soap zip \
+    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli pdo_mysql pdo_pgsql pgsql soap xsl zip \
     && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
     && docker-php-ext-install gd \
     && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
diff --git a/5.5/Dockerfile b/5.5/Dockerfile
index 2ae80bf..494d288 100644
--- a/5.5/Dockerfile
+++ b/5.5/Dockerfile
@@ -20,9 +20,10 @@ RUN buildDeps=" \
         libpng12-dev \
         libpq-dev \
         libxml2-dev \
+        libxslt1-dev \
     " \
     && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $buildDeps $runtimeDeps \
-    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli opcache pdo_mysql pdo_pgsql pgsql soap zip \
+    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli opcache pdo_mysql pdo_pgsql pgsql soap xsl zip \
     && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
     && docker-php-ext-install gd \
     && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
diff --git a/5.5/apache/Dockerfile b/5.5/apache/Dockerfile
index 5d8d7d6..eed2cfd 100644
--- a/5.5/apache/Dockerfile
+++ b/5.5/apache/Dockerfile
@@ -20,9 +20,10 @@ RUN buildDeps=" \
         libpng12-dev \
         libpq-dev \
         libxml2-dev \
+        libxslt1-dev \
     " \
     && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $buildDeps $runtimeDeps \
-    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli opcache pdo_mysql pdo_pgsql pgsql soap zip \
+    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli opcache pdo_mysql pdo_pgsql pgsql soap xsl zip \
     && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
     && docker-php-ext-install gd \
     && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
diff --git a/5.5/fpm/Dockerfile b/5.5/fpm/Dockerfile
index 9859639..5af8efb 100644
--- a/5.5/fpm/Dockerfile
+++ b/5.5/fpm/Dockerfile
@@ -20,9 +20,10 @@ RUN buildDeps=" \
         libpng12-dev \
         libpq-dev \
         libxml2-dev \
+        libxslt1-dev \
     " \
     && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $buildDeps $runtimeDeps \
-    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli opcache pdo_mysql pdo_pgsql pgsql soap zip \
+    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mcrypt mysql mysqli opcache pdo_mysql pdo_pgsql pgsql soap xsl zip \
     && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
     && docker-php-ext-install gd \
     && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
diff --git a/5.6/Dockerfile b/5.6/Dockerfile
index a833ed8..94f957d 100644
--- a/5.6/Dockerfile
+++ b/5.6/Dockerfile
@@ -28,6 +28,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/5.6/apache/Dockerfile b/5.6/apache/Dockerfile
index 2fe48f1..c17ee1b 100644
--- a/5.6/apache/Dockerfile
+++ b/5.6/apache/Dockerfile
@@ -28,6 +28,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip \
 # already installed:
 #      iconv \
diff --git a/5.6/fpm/Dockerfile b/5.6/fpm/Dockerfile
index 1bc47d6..f8a3d12 100644
--- a/5.6/fpm/Dockerfile
+++ b/5.6/fpm/Dockerfile
@@ -28,6 +28,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.0/Dockerfile b/7.0/Dockerfile
index ab86bab..e44d90e 100644
--- a/7.0/Dockerfile
+++ b/7.0/Dockerfile
@@ -27,6 +27,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.0/apache/Dockerfile b/7.0/apache/Dockerfile
index d2e715c..fd59d5d 100644
--- a/7.0/apache/Dockerfile
+++ b/7.0/apache/Dockerfile
@@ -27,6 +27,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip \
 # already installed:
 #      iconv \
diff --git a/7.0/fpm/Dockerfile b/7.0/fpm/Dockerfile
index 57cd0f2..1db192b 100644
--- a/7.0/fpm/Dockerfile
+++ b/7.0/fpm/Dockerfile
@@ -27,6 +27,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.1/Dockerfile b/7.1/Dockerfile
index 2aedef4..f2af2c1 100644
--- a/7.1/Dockerfile
+++ b/7.1/Dockerfile
@@ -27,6 +27,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.1/apache/Dockerfile b/7.1/apache/Dockerfile
index e8fd4f5..feca135 100644
--- a/7.1/apache/Dockerfile
+++ b/7.1/apache/Dockerfile
@@ -27,6 +27,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip \
 # already installed:
 #      iconv \
diff --git a/7.1/fpm/Dockerfile b/7.1/fpm/Dockerfile
index 262a4a3..e862e48 100644
--- a/7.1/fpm/Dockerfile
+++ b/7.1/fpm/Dockerfile
@@ -27,6 +27,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.2/Dockerfile b/7.2/Dockerfile
index 7f8677d..738d454 100644
--- a/7.2/Dockerfile
+++ b/7.2/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.2/apache/Dockerfile b/7.2/apache/Dockerfile
index 34253d8..27e8fd2 100644
--- a/7.2/apache/Dockerfile
+++ b/7.2/apache/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip \
 # already installed:
 #      iconv \
diff --git a/7.2/fpm/Dockerfile b/7.2/fpm/Dockerfile
index 1abbc7f..d078d5a 100644
--- a/7.2/fpm/Dockerfile
+++ b/7.2/fpm/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.3/Dockerfile b/7.3/Dockerfile
index 14a89a3..3bc40ee 100644
--- a/7.3/Dockerfile
+++ b/7.3/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.3/apache/Dockerfile b/7.3/apache/Dockerfile
index 0e8dc20..8e43db6 100644
--- a/7.3/apache/Dockerfile
+++ b/7.3/apache/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip \
 # already installed:
 #      iconv \
diff --git a/7.3/fpm/Dockerfile b/7.3/fpm/Dockerfile
index f072a3d..e12af71 100644
--- a/7.3/fpm/Dockerfile
+++ b/7.3/fpm/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.4/Dockerfile b/7.4/Dockerfile
index df43d88..5766547 100644
--- a/7.4/Dockerfile
+++ b/7.4/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/7.4/apache/Dockerfile b/7.4/apache/Dockerfile
index 9068f83..4aa7cb6 100644
--- a/7.4/apache/Dockerfile
+++ b/7.4/apache/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip \
 # already installed:
 #      iconv \
diff --git a/7.4/fpm/Dockerfile b/7.4/fpm/Dockerfile
index 02040ce..f53a55b 100644
--- a/7.4/fpm/Dockerfile
+++ b/7.4/fpm/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/Dockerfile b/Dockerfile
index 211e293..6d4a119 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,6 +26,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
       pgsql \
       redis \
       soap \
+      xsl \
       zip
 # already installed:
 #      iconv \
diff --git a/Makefile b/Makefile
index fd6ba1f..9617373 100644
--- a/Makefile
+++ b/Makefile
@@ -25,8 +25,9 @@ EXTENSIONS := \
 	pdo_pgsql \
 	pgsql \
 	redis \
-	soap \
-	zip
+    soap \
+    xsl \
+    zip
 ifeq (,$(findstring $(PHP_VERSION), 7.2 7.3 7.4 latest))
 	# Add more extensions to PHP < 7.2.
 	EXTENSIONS += mcrypt
diff --git a/README.md b/README.md
index 499fed3..dafa5ea 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,7 @@ in addition to those you can already find in the [official PHP image](https://hu
 - `pgsql`
 - `redis`
 - `soap`
+- `xsl`
 - `Zend OPcache`
 - `zip`