diff --git a/.gitignore b/.gitignore
index 7d88e55a4..5b8195560 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ asciidoctor.css
 target/
 build/
 bin/
+.sts4-cache/
 .m2/
 .gradle/
 _site/
@@ -24,4 +25,4 @@ _site/
 coverage-error.log
 .apt_generated
 credentials.yml
-.flattened-pom.xml
\ No newline at end of file
+.flattened-pom.xml