diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
new file mode 100644
index 0000000..776ebc0
--- /dev/null
+++ b/.github/pull_request_template.md
@@ -0,0 +1,25 @@
+# Description
+
+Please include a summary of the change and include relevant motivation and context.
+
+...
+
+
+## Checklist:
+
+- [ ] The `make buildall` command has been run successfully without any error or warning.
+- [ ] Any new code line is covered by unit tests and the coverage has not dropped.
+- [ ] Any new code follows the style guidelines of this project.
+- [ ] The code changes have been self-reviewed.
+- [ ] Corresponding changes to the documentation have been made.
+- [ ] The version has been updated in the VERSION file.
+
+## Type of change:
+
+- [ ] Bug fix (non-breaking change which fixes an issue) → The patch number in the VERSION file has been increased.
+- [ ] New feature (non-breaking change which adds functionality) → The minor number in the VERSION file has been increased.
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) → The major number in the VERSION file has been increased.
+- [ ] Automation.
+- [ ] Documentation.
+- [ ] Example.
+- [ ] Testing.
diff --git a/VERSION b/VERSION
index 4e1c894..74e56b6 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.0.20
+8.0.21
diff --git a/resources/debian/control b/resources/debian/control
index b663ddb..c1afbbf 100644
--- a/resources/debian/control
+++ b/resources/debian/control
@@ -10,6 +10,6 @@ Vcs-Git: https://github.com/~#VENDOR#~/~#PROJECT#~.git
 Package: ~#PKGNAME#~
 Provides: php-~#PROJECT#~
 Architecture: all
-Depends: php (>= 5.4.0), php-date, php-tecnickcom-tc-lib-barcode (<< 2.0.0), php-tecnickcom-tc-lib-barcode (>= 1.17.22), php-tecnickcom-tc-lib-color (<< 2.0.0), php-tecnickcom-tc-lib-color (>= 1.14.21), php-tecnickcom-tc-lib-pdf-image (<< 2.0.0), php-tecnickcom-tc-lib-pdf-image (>= 1.4.3), php-tecnickcom-tc-lib-pdf-font (<< 2.0.0), php-tecnickcom-tc-lib-pdf-font (>= 1.11.4), php-tecnickcom-tc-lib-file (<< 2.0.0), php-tecnickcom-tc-lib-file (>= 1.7.21), php-tecnickcom-tc-lib-pdf-encrypt (<< 2.0.0), php-tecnickcom-tc-lib-pdf-encrypt (>= 1.6.17), php-tecnickcom-tc-lib-unicode-data (<< 2.0.0), php-tecnickcom-tc-lib-unicode-data (>= 1.7.15), php-tecnickcom-tc-lib-unicode (<< 2.0.0), php-tecnickcom-tc-lib-unicode (>= 1.4.16), php-tecnickcom-tc-lib-pdf-page (<< 3.0.0), php-tecnickcom-tc-lib-pdf-page (>= 3.1.4), php-tecnickcom-tc-lib-pdf-graph (<< 2.0.0), php-tecnickcom-tc-lib-pdf-graph (>= 1.7.6), ${misc:Depends}
+Depends: php (>= 5.4.0), php-date, php-tecnickcom-tc-lib-barcode (<< 2.0.0), php-tecnickcom-tc-lib-barcode (>= 1.17.24), php-tecnickcom-tc-lib-color (<< 2.0.0), php-tecnickcom-tc-lib-color (>= 1.14.23), php-tecnickcom-tc-lib-pdf-image (<< 2.0.0), php-tecnickcom-tc-lib-pdf-image (>= 1.4.4), php-tecnickcom-tc-lib-pdf-font (<< 2.0.0), php-tecnickcom-tc-lib-pdf-font (>= 1.11.5), php-tecnickcom-tc-lib-file (<< 2.0.0), php-tecnickcom-tc-lib-file (>= 1.7.23), php-tecnickcom-tc-lib-pdf-encrypt (<< 2.0.0), php-tecnickcom-tc-lib-pdf-encrypt (>= 1.6.19), php-tecnickcom-tc-lib-unicode-data (<< 2.0.0), php-tecnickcom-tc-lib-unicode-data (>= 1.7.17), php-tecnickcom-tc-lib-unicode (<< 2.0.0), php-tecnickcom-tc-lib-unicode (>= 1.4.17), php-tecnickcom-tc-lib-pdf-page (<< 3.0.0), php-tecnickcom-tc-lib-pdf-page (>= 3.1.5), php-tecnickcom-tc-lib-pdf-graph (<< 2.0.0), php-tecnickcom-tc-lib-pdf-graph (>= 1.7.7), ${misc:Depends}
 Description: PHP Barcode library
  This library includes PHP classes to generate PDF documents.
diff --git a/resources/rpm/rpm.spec b/resources/rpm/rpm.spec
index 2cffdd9..392379e 100644
--- a/resources/rpm/rpm.spec
+++ b/resources/rpm/rpm.spec
@@ -20,25 +20,25 @@ Requires:  php(language) >= 5.4.0
 Requires:  php-date
 Requires:  php-pcre
 Requires:  php-composer(%{c_vendor}/tc-lib-barcode) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-barcode) >= 1.17.22
+Requires:  php-composer(%{c_vendor}/tc-lib-barcode) >= 1.17.24
 Requires:  php-composer(%{c_vendor}/tc-lib-color) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-color) >= 1.14.21
+Requires:  php-composer(%{c_vendor}/tc-lib-color) >= 1.14.23
 Requires:  php-composer(%{c_vendor}/tc-lib-pdf-image) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-pdf-image) >= 1.4.3
+Requires:  php-composer(%{c_vendor}/tc-lib-pdf-image) >= 1.4.4
 Requires:  php-composer(%{c_vendor}/tc-lib-pdf-font) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-pdf-font) >= 1.11.4
+Requires:  php-composer(%{c_vendor}/tc-lib-pdf-font) >= 1.11.5
 Requires:  php-composer(%{c_vendor}/tc-lib-file) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-file) >= 1.7.21
+Requires:  php-composer(%{c_vendor}/tc-lib-file) >= 1.7.23
 Requires:  php-composer(%{c_vendor}/tc-lib-pdf-encrypt) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-pdf-encrypt) >= 1.6.17
+Requires:  php-composer(%{c_vendor}/tc-lib-pdf-encrypt) >= 1.6.19
 Requires:  php-composer(%{c_vendor}/tc-lib-unicode-data) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-unicode-data) >= 1.7.15
+Requires:  php-composer(%{c_vendor}/tc-lib-unicode-data) >= 1.7.17
 Requires:  php-composer(%{c_vendor}/tc-lib-unicode) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-unicode) >= 1.4.16
+Requires:  php-composer(%{c_vendor}/tc-lib-unicode) >= 1.4.17
 Requires:  php-composer(%{c_vendor}/tc-lib-pdf-page) < 3.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-pdf-page) >= 3.1.4
+Requires:  php-composer(%{c_vendor}/tc-lib-pdf-page) >= 3.1.5
 Requires:  php-composer(%{c_vendor}/tc-lib-pdf-graph) < 2.0.0
-Requires:  php-composer(%{c_vendor}/tc-lib-pdf-graph) >= 1.7.6
+Requires:  php-composer(%{c_vendor}/tc-lib-pdf-graph) >= 1.7.7
 
 Provides:  php-composer(%{c_vendor}/%{gh_project}) = %{version}
 Provides:  php-%{gh_project} = %{version}
diff --git a/src/MetaInfo.php b/src/MetaInfo.php
index 1f799fd..10beeca 100644
--- a/src/MetaInfo.php
+++ b/src/MetaInfo.php
@@ -35,7 +35,7 @@ abstract class MetaInfo extends \Com\Tecnick\Pdf\Output
      *
      * @var string
      */
-    protected $version = '8.0.20';
+    protected $version = '8.0.21';
 
     /**
      * Time is seconds since EPOCH when the document was created.