diff --git a/Package.resolved b/Package.resolved
index 0a58aa6..ba6b066 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -24,8 +24,8 @@
         "repositoryURL": "https://github.com/apple/swift-nio.git",
         "state": {
           "branch": null,
-          "revision": "4409b57d4c0c40d41ac2b320fccf02e4d451e3db",
-          "version": "2.13.0"
+          "revision": "df9390006bce7da1b6273f804d3acbbfdfcc6154",
+          "version": "2.13.1"
         }
       },
       {
diff --git a/docker/5.1.4/Dockerfile b/docker/5.1.4/Dockerfile
index f198c8a..8aef938 100644
--- a/docker/5.1.4/Dockerfile
+++ b/docker/5.1.4/Dockerfile
@@ -1,4 +1,4 @@
-FROM swift:5.1.3 as builder
+FROM swift:5.1.4 as builder
 
 RUN apt-get -qq update && apt-get -q -y install \
     libssl-dev libicu-dev