diff --git a/.github/workflows/mvn.yml b/.github/workflows/mvn.yml
index 854bc6f863..a29711c744 100644
--- a/.github/workflows/mvn.yml
+++ b/.github/workflows/mvn.yml
@@ -21,6 +21,9 @@
 # SOFTWARE.
 ---
 name: mvn
+env:
+  JAVA_TOOL_OPTIONS: "-Dfile.encoding=UTF8"
+  JAVA_OPTS: "%JAVA_OPTS% -Dfile.encoding=UTF-8"
 on:
   push:
     branches: