diff --git a/ports/c9y/portfile.cmake b/ports/c9y/portfile.cmake
index 42f281d8c7b..0b44fd3a401 100644
--- a/ports/c9y/portfile.cmake
+++ b/ports/c9y/portfile.cmake
@@ -1,8 +1,8 @@
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO rioki/c9y
-    REF v0.3.0
-    SHA512 9d105f5d8f93856d6104663704944e0456c779c9ae6469d4ad9a40f6e451065376a44e4efb61c2e0b5e79cb2f3ae78de72209b6668d56d7df7992275f2168336
+    REF v0.4.0
+    SHA512 496466a639fa1f4111583363ce13ce4f2c1d6a56763fd12f45acc2cb791f379a6d81545536186e8f0f72f19a9b5689d16fd0561345411ca1cb98a16447141114
     )
 
 vcpkg_cmake_configure(
diff --git a/ports/c9y/vcpkg.json b/ports/c9y/vcpkg.json
index ebeff761000..a0f025b334b 100644
--- a/ports/c9y/vcpkg.json
+++ b/ports/c9y/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "c9y",
-  "version-semver": "0.3.0",
+  "version-semver": "0.4.0",
   "description": "Concurency",
   "homepage": "https://github.com/rioki/c9y",
   "license": "MIT",
diff --git a/versions/baseline.json b/versions/baseline.json
index 72034428f0f..cdbee196a2b 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -1237,7 +1237,7 @@
       "port-version": 0
     },
     "c9y": {
-      "baseline": "0.3.0",
+      "baseline": "0.4.0",
       "port-version": 0
     },
     "caf": {
diff --git a/versions/c-/c9y.json b/versions/c-/c9y.json
index 62647f3068e..5a4f3d99083 100644
--- a/versions/c-/c9y.json
+++ b/versions/c-/c9y.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "7664032e69d86b58605c20e353af75d9961d10d8",
+      "version-semver": "0.4.0",
+      "port-version": 0
+    },
     {
       "git-tree": "5964f7fa10d83aa2d1a01ec7c64bd9b64f25f6a6",
       "version-semver": "0.3.0",