diff --git a/versions/c-/concurrencpp.json b/versions/c-/concurrencpp.json
index 55148535c1..f1ae8f34c6 100644
--- a/versions/c-/concurrencpp.json
+++ b/versions/c-/concurrencpp.json
@@ -1,7 +1,7 @@
 {
   "versions": [
     {
-      "git-tree": "958ed083fc8608a9c30ce6b67e39a770896aab44",
+      "git-tree": "f0b934ddaddf9152a82bd1b6c2c6a5e4cb6d21b0",
       "version-string": "0.1.2",
       "port-version": 0
     }