diff --git a/README.md b/README.md
index 7234d88..3154502 100644
--- a/README.md
+++ b/README.md
@@ -107,11 +107,13 @@ are only a few supported options:
 # every time something updates.
 # Note that you SHALL NOT depend on the exact value of this UPSTREAM_VERSION variable. It should
 # ONLY be used as a cache invalidation mechanism.
-INVALIDATE_CACHE_UPSTREAM_ARCHLINUX="some/package"
+INVALIDATE_CACHE_UPSTREAM_ARCHLINUX="[core|extra|multilib]/package"
 # Same thing, but for GitHub upstreams
-INVALIDATE_CACHE_UPSTREAM_GITHUB="some/package"
+INVALIDATE_CACHE_UPSTREAM_GITHUB="user/package"
 # or Ubuntu
-INVALIDATE_CACHE_UPSTREAM_UBUNTU="some/package"
+INVALIDATE_CACHE_UPSTREAM_UBUNTU="package"
+# or AUR (Arch User Repository)
+INVALIDATE_CACHE_UPSTREAM_AUR="some_package"
 ```
 
 Limitations