diff --git a/core/help.gif b/core/help.gif
index 358650ff..bfa9bdab 100644
Binary files a/core/help.gif and b/core/help.gif differ
diff --git a/core/icons/cas.gif b/core/icons/cas.gif
index f15c6bfb..6942d5d8 100644
Binary files a/core/icons/cas.gif and b/core/icons/cas.gif differ
diff --git a/core/icons/chem.gif b/core/icons/chem.gif
index 8c80306b..527cf739 100644
Binary files a/core/icons/chem.gif and b/core/icons/chem.gif differ
diff --git a/core/icons/formula.gif b/core/icons/formula.gif
index 76da540f..b783d7ea 100644
Binary files a/core/icons/formula.gif and b/core/icons/formula.gif differ
diff --git a/core/icons/tiny_mce/cas.gif b/core/icons/tiny_mce/cas.gif
index 04a248bb..1d39dba2 100644
Binary files a/core/icons/tiny_mce/cas.gif and b/core/icons/tiny_mce/cas.gif differ
diff --git a/core/icons/tiny_mce/chem.gif b/core/icons/tiny_mce/chem.gif
index 4d5b79e2..54f3068a 100644
Binary files a/core/icons/tiny_mce/chem.gif and b/core/icons/tiny_mce/chem.gif differ
diff --git a/core/icons/tiny_mce/formula.gif b/core/icons/tiny_mce/formula.gif
index 5c4e118e..655cf41e 100644
Binary files a/core/icons/tiny_mce/formula.gif and b/core/icons/tiny_mce/formula.gif differ
diff --git a/core/icons/xinha/cas.gif b/core/icons/xinha/cas.gif
index df59dbf8..94032ddd 100644
Binary files a/core/icons/xinha/cas.gif and b/core/icons/xinha/cas.gif differ
diff --git a/core/icons/xinha/formula.gif b/core/icons/xinha/formula.gif
index 05b68207..6b3b6802 100644
Binary files a/core/icons/xinha/formula.gif and b/core/icons/xinha/formula.gif differ
diff --git a/thirdpartylibs.xml b/thirdpartylibs.xml
index 974bad6c..61ac55cc 100644
--- a/thirdpartylibs.xml
+++ b/thirdpartylibs.xml
@@ -3,7 +3,7 @@
     <library>
         <location>core</location>
         <name>MathType JavaScript engine</name>
-        <version>7.3.0.1390</version>
+        <version>7.5.0.1391</version>
         <license>GPL</license>
         <licenseversion>3.0+</licenseversion>
     </library>
diff --git a/version.php b/version.php
index 15be8073..fe991db3 100644
--- a/version.php
+++ b/version.php
@@ -25,9 +25,9 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version = 2018070300;
-$plugin->release = '7.3.0.1390';
+$plugin->version = 2018080300;
+$plugin->release = '7.5.0.1391';
 $plugin->requires = 2014050800;
 $plugin->component = 'atto_wiris';
-$plugin->dependencies = array ('filter_wiris' => 2018070300);
+$plugin->dependencies = array ('filter_wiris' => 2018080300);
 $plugin->maturity = MATURITY_STABLE;