diff --git a/.gitignore b/.gitignore
index 487f648..09de294 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,5 +59,8 @@ typings/
 # dotenv environment variables file
 .env
 
+# osx
+**/.DS_Store
+
 # temporary local files
 tmp*
\ No newline at end of file
diff --git a/compatiblity-matrix.txt b/compatiblity-matrix.txt
index 6dedbb3..b4c8d58 100644
--- a/compatiblity-matrix.txt
+++ b/compatiblity-matrix.txt
@@ -3,7 +3,8 @@
 |      Version       |    Version        |
 |  (Scala Version)   |  (Scala Version)  |
 +--------------------+-------------------+
-| 0.9.2-*(2.12,2.13) | 2.7.0 (2.12,2,13) |
+| 0.9.2-*(2.12,2.13) | 2.8.x (2.12,2,13) |
+|                    | 2.7.x (2.12,2,13) |
 |                    | 2.6.x (2.12,2.13) |
 |                    | 2.5.x (2.12,2.13) |
 |                    | 2.4.1 (2.12,2.13) |
diff --git a/modules/scala_2.12/pom.xml b/modules/scala_2.12/pom.xml
index 411bb18..d66fb18 100644
--- a/modules/scala_2.12/pom.xml
+++ b/modules/scala_2.12/pom.xml
@@ -14,7 +14,7 @@
     </parent>
 
     <properties>
-        <scala.version>2.12.11</scala.version>
+        <scala.version>2.12.15</scala.version>
         <scala.binary.version>2.12</scala.binary.version>
     </properties>
     
diff --git a/modules/scala_2.13/pom.xml b/modules/scala_2.13/pom.xml
index 76a1147..0ae9d7b 100644
--- a/modules/scala_2.13/pom.xml
+++ b/modules/scala_2.13/pom.xml
@@ -14,7 +14,7 @@
     </parent>
 
     <properties>
-        <scala.version>2.13.4</scala.version>
+        <scala.version>2.13.6</scala.version>
         <scala.binary.version>2.13</scala.binary.version>
     </properties>
 
diff --git a/pom.xml b/pom.xml
index 8a8fceb..2be29ed 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,9 +29,9 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <encoding>UTF-8</encoding>
         
-        <guava.version>30.0-jre</guava.version>
+        <guava.version>31.0.1-jre</guava.version>
         <mockito-core.version>3.6.0</mockito-core.version>
-        <kafka.version>2.6.1</kafka.version>
+        <kafka.version>2.8.1</kafka.version>
         <scalatest.version>3.1.2</scalatest.version>
         <slf4j.version>1.7.21</slf4j.version>
     </properties>