diff --git a/rustecal-pubsub/Cargo.toml b/rustecal-pubsub/Cargo.toml
index 8807c86..e004e0f 100644
--- a/rustecal-pubsub/Cargo.toml
+++ b/rustecal-pubsub/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rustecal-pubsub"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Rex Schilasky"]
 edition = "2021"
 description = "Publish/Subscribe API for Eclipse eCAL"
diff --git a/rustecal-pubsub/README.md b/rustecal-pubsub/README.md
index 113cc66..6e33b92 100644
--- a/rustecal-pubsub/README.md
+++ b/rustecal-pubsub/README.md
@@ -9,6 +9,11 @@
 - **Support for arbitrary message types** implementing the `PublisherMessage` and `SubscriberMessage` traits
 - **Metadata propagation**: topics carry encoding, type name, and optional descriptor
 
+## Requirements
+
+- **Rust** 1.60 or later  
+- **eCAL** C/C++ library v6.0 or later installed and accessible on your system
+
 ## Installation
 
 Add to your `Cargo.toml`: