diff --git a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/module-info.java b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/module-info.java
new file mode 100644
index 000000000000..f075aadc0b82
--- /dev/null
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/module-info.java
@@ -0,0 +1,26 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2019 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+module com.iluwatar.abstractfactory {
+	requires org.slf4j;
+}
\ No newline at end of file
diff --git a/acyclic-visitor/src/main/java/com/iluwatar/acyclicvisitor/module-info.java b/acyclic-visitor/src/main/java/com/iluwatar/acyclicvisitor/module-info.java
new file mode 100644
index 000000000000..78de5a786d71
--- /dev/null
+++ b/acyclic-visitor/src/main/java/com/iluwatar/acyclicvisitor/module-info.java
@@ -0,0 +1,26 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2019 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+module com.iluwatar.acyclicvisitor {
+	requires org.slf4j;
+}
\ No newline at end of file
diff --git a/caching/pom.xml b/caching/pom.xml
index ee13e2b5727b..704dd78d0049 100644
--- a/caching/pom.xml
+++ b/caching/pom.xml
@@ -41,7 +41,7 @@
     <dependency>
       <groupId>org.mongodb</groupId>
       <artifactId>mongodb-driver</artifactId>
-      <version>3.12.0</version>
+      <version>3.12.1</version>
     </dependency>
     <dependency>
       <groupId>org.mongodb</groupId>
diff --git a/pom.xml b/pom.xml
index 2c6e3e17eb99..d035cfe405b1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -42,7 +42,7 @@
         <mockito.version>1.10.19</mockito.version>
         <htmlunit.version>2.22</htmlunit.version>
         <guice.version>4.0</guice.version>
-        <mongo-java-driver.version>3.12.0</mongo-java-driver.version>
+        <mongo-java-driver.version>3.12.1</mongo-java-driver.version>
         <slf4j.version>1.7.30</slf4j.version>
         <logback.version>1.2.3</logback.version>
         <aws-lambda-core.version>1.1.0</aws-lambda-core.version>
@@ -322,7 +322,7 @@
             <dependency>
                 <groupId>org.javassist</groupId>
                 <artifactId>javassist</artifactId>
-                <version>3.25.0-GA</version>
+                <version>3.26.0-GA</version>
             </dependency>
             <dependency>
                 <groupId>com.github.stefanbirkner</groupId>