diff --git a/changelog.d/5-internal/multiple-messages b/changelog.d/5-internal/multiple-messages
new file mode 100644
index 0000000000..38543a8906
--- /dev/null
+++ b/changelog.d/5-internal/multiple-messages
@@ -0,0 +1 @@
+Update group state after application message
diff --git a/integration/test/MLS/Util.hs b/integration/test/MLS/Util.hs
index 68feacee6d..10dbd41724 100644
--- a/integration/test/MLS/Util.hs
+++ b/integration/test/MLS/Util.hs
@@ -724,7 +724,7 @@ createApplicationMessage cid messageContent = do
   message <-
     mlscli
       cid
-      ["message", "--group", "<group-in>", messageContent]
+      ["message", "--group-in", "<group-in>", messageContent, "--group-out", "<group-out>"]
       Nothing
 
   pure
diff --git a/integration/test/Test/MLS/Message.hs b/integration/test/Test/MLS/Message.hs
index 762278f8de..f4bfef3e58 100644
--- a/integration/test/Test/MLS/Message.hs
+++ b/integration/test/Test/MLS/Message.hs
@@ -104,3 +104,20 @@ testMessageNotifications bobDomain = do
 
   get def `shouldMatchInt` (numNotifs + 1)
   get def {client = Just bobClient} `shouldMatchInt` (numNotifsClient + 1)
+
+testMultipleMessages :: HasCallStack => App ()
+testMultipleMessages = do
+  [alice, bob] <- createAndConnectUsers [OwnDomain, OtherDomain]
+  [alice1, bob1] <- traverse (createMLSClient def) [alice, bob]
+  traverse_ uploadNewKeyPackage [alice1, bob1]
+  void $ createNewGroup alice1
+
+  withWebSockets [bob] $ \wss -> do
+    void $ createAddCommit alice1 [bob] >>= sendAndConsumeCommitBundle
+    traverse_ (awaitMatch 10 isMemberJoinNotif) wss
+
+    void $ createApplicationMessage alice1 "hello" >>= sendAndConsumeMessage
+    traverse_ (awaitMatch 10 isNewMLSMessageNotif) wss
+
+    void $ createApplicationMessage alice1 "world" >>= sendAndConsumeMessage
+    traverse_ (awaitMatch 10 isNewMLSMessageNotif) wss
diff --git a/libs/wire-api/test/unit/Test/Wire/API/MLS.hs b/libs/wire-api/test/unit/Test/Wire/API/MLS.hs
index efd3fa48a5..74652d8662 100644
--- a/libs/wire-api/test/unit/Test/Wire/API/MLS.hs
+++ b/libs/wire-api/test/unit/Test/Wire/API/MLS.hs
@@ -123,7 +123,7 @@ testParseApplication = do
   msgData <- withSystemTempDirectory "mls" $ \tmp -> do
     void $ spawn (cli qcid tmp ["init", qcid]) Nothing
     groupJSON <- spawn (cli qcid tmp ["group", "create", "Zm9v"]) Nothing
-    spawn (cli qcid tmp ["message", "--group", "-", "hello"]) (Just groupJSON)
+    spawn (cli qcid tmp ["message", "--group-in", "-", "hello"]) (Just groupJSON)
 
   msg <- case decodeMLS' @Message msgData of
     Left err -> assertFailure (T.unpack err)
diff --git a/nix/pkgs/mls-test-cli/default.nix b/nix/pkgs/mls-test-cli/default.nix
index 2ba2d12657..832690a70d 100644
--- a/nix/pkgs/mls-test-cli/default.nix
+++ b/nix/pkgs/mls-test-cli/default.nix
@@ -11,8 +11,8 @@ let
   src = fetchFromGitHub {
     owner = "wireapp";
     repo = "mls-test-cli";
-    rev = "e6e6ce0c29f0e48e84b4ccef058130aca0625492";
-    sha256 = "sha256-J9M8w3GJnULH3spKEuPGCL/t43zb2Wd+YfZ0LY3YITo=";
+    rev = "baaa5c78411a5bf6d697803276b991523c111631";
+    sha256 = "sha256-M6bWB5hWl+WSblcH6L+AyGD+7ef9TvRs8wKYq7lJyS8=";
   };
   cargoLockFile = builtins.toFile "cargo.lock" (builtins.readFile "${src}/Cargo.lock");
 in rustPlatform.buildRustPackage rec {
@@ -23,7 +23,7 @@ in rustPlatform.buildRustPackage rec {
     lockFile = cargoLockFile;
     outputHashes = {
       "hpke-0.10.0" = "sha256-T1+BFwX6allljNZ/8T3mrWhOejnUU27BiWQetqU+0fY=";
-      "openmls-1.0.0" = "sha256-s1ejM/aicFGvsKY7ajEun1Mc645/k8QVrE8YSbyD3Fg=";
+      "openmls-1.0.0" = "sha256-tAIm8+IgubNnU2M2A5cxHY5caiEQmisw73I9/cqfvUc=";
       "safe_pqc_kyber-0.6.0" = "sha256-Ch1LA+by+ezf5RV0LDSQGC1o+IWKXk8IPvkwSrAos68=";
       "tls_codec-0.3.0" = "sha256-IO6tenXKkC14EoUDp/+DtFNOVzDfOlLu8K1EJI7sOzs=";
     };
diff --git a/services/galley/test/integration/API/MLS/Util.hs b/services/galley/test/integration/API/MLS/Util.hs
index 435c4f0c6a..f15e326db3 100644
--- a/services/galley/test/integration/API/MLS/Util.hs
+++ b/services/galley/test/integration/API/MLS/Util.hs
@@ -647,7 +647,7 @@ createApplicationMessage cid messageContent = do
   message <-
     mlscli
       cid
-      ["message", "--group", "<group-in>", messageContent]
+      ["message", "--group-in", "<group-in>", messageContent, "--group-out", "<group-out>"]
       Nothing
 
   pure $