diff --git a/manifests/cargo-deb.json b/manifests/cargo-deb.json
index 8fd56c22..616a4fd1 100644
--- a/manifests/cargo-deb.json
+++ b/manifests/cargo-deb.json
@@ -15,6 +15,12 @@
   "3.6": {
     "version": "3.6.3"
   },
+  "3.6.4": {
+    "x86_64_linux_gnu": {
+      "etag": "0x8DEA528E26D5EF0",
+      "hash": "3a95dff12baba70efe3a050a3ad94149ace73114c5af988d34073183e09dd584"
+    }
+  },
   "3.6.3": {
     "x86_64_linux_gnu": {
       "etag": "0x8DE63F58EBB06E1",