diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 553be018e..bf4a610f0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
   build:
     strategy:
       matrix:
-        java: [ '8', '11' ]
+        java: [ '11' ]
         os: [ 'ubuntu-latest', 'windows-latest', 'macos-latest' ]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/github-pages.yml b/.github/workflows/github-pages.yml
index bf4093ced..af54b4385 100644
--- a/.github/workflows/github-pages.yml
+++ b/.github/workflows/github-pages.yml
@@ -3,7 +3,8 @@ name: github-pages
 on:
   push:
     branches:
-      - master # upload demo report only from main branch
+      # upload demo report only from main branch
+      - master
 
 jobs:
   build:
diff --git a/pom.xml b/pom.xml
index 5541ec603..aac8bfa05 100644
--- a/pom.xml
+++ b/pom.xml
@@ -116,8 +116,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
                 <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
+                    <source>11</source>
+                    <target>11</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>
@@ -153,7 +153,7 @@
             <plugin>
                 <groupId>org.jacoco</groupId>
                 <artifactId>jacoco-maven-plugin</artifactId>
-                <version>0.8.6</version>
+                <version>0.8.8</version>
                 <executions>
                     <execution>
                         <goals>