diff --git a/scm-core/src/main/java/sonia/scm/repository/RepositoryEvent.java b/scm-core/src/main/java/sonia/scm/repository/RepositoryEvent.java
index 22b1b6333f..8ca29c0494 100644
--- a/scm-core/src/main/java/sonia/scm/repository/RepositoryEvent.java
+++ b/scm-core/src/main/java/sonia/scm/repository/RepositoryEvent.java
@@ -22,6 +22,8 @@ import sonia.scm.HandlerEventType;
 import sonia.scm.event.AbstractHandlerEvent;
 import sonia.scm.event.Event;
 
+import java.util.stream.Stream;
+
 /**
  * The RepositoryEvent is fired if a {@link Repository} object changes.
  *
diff --git a/yarn.lock b/yarn.lock
index a82b1923c1..496d127776 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -16833,9 +16833,9 @@ redux@^3.6.0:
     symbol-observable "^1.0.3"
 
 redux@^4.0.0:
-  version "4.2.0"
-  resolved "https://registry.npmjs.org/redux/-/redux-4.2.0.tgz"
-  integrity sha512-oSBmcKKIuIR4ME29/AeNUnl5L+hvBq7OaJWzaptTQJAntaPvxIJqfnjbaEiCzzaIz+XmVILfqAM3Ob0aXLPfjA==
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/redux/-/redux-4.2.1.tgz#c08f4306826c49b5e9dc901dee0452ea8fce6197"
+  integrity sha512-LAUYz4lc+Do8/g7aeRa8JkyDErK6ekstQaqWQrNRW//MY1TvCEpMtpTWvlQ+FPbWCx+Xixu/6SHt5N0HR+SB4w==
   dependencies:
     "@babel/runtime" "^7.9.2"