diff --git a/.swift-version b/.swift-version
index 803d94e1..feb96e1d 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-5.6.3
+5.7.3
diff --git a/Sources/FoundationHTTP/Web3WebSocketProvider.swift b/Sources/FoundationHTTP/Web3WebSocketProvider.swift
index 8f04e481..287d36fa 100644
--- a/Sources/FoundationHTTP/Web3WebSocketProvider.swift
+++ b/Sources/FoundationHTTP/Web3WebSocketProvider.swift
@@ -97,6 +97,9 @@ public class Web3WebSocketProvider: Web3Provider, Web3BidirectionalProvider {
     deinit {
         closed = true
         _ = webSocket.close(code: .goingAway)
+
+        // As described in https://github.com/apple/swift-nio/issues/2371
+        try? wsEventLoopGroup.syncShutdownGracefully()
     }
 
     // MARK: - Web3Provider