diff --git a/README.md b/README.md
index d7be4f6..5b297ca 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,8 @@ An online demo is available at [scan.rxing.org](https://scan.rxing.org).
 ## WASM
 If you're looking for a WASM version of this library, check out [rxing-wasm](https://github.com/rxing-core/rxing-wasm), or on [NPM](https://www.npmjs.com/package/rxing-wasm).
 
+## Minimum Rust Version
+Currently building with a minimum rust version of 1.69. Versions below that are not tested and may not compile or run as expected.
 
 ## Status
 All barcode formats are tested and functioning in their current state against current tests.
diff --git a/crates/cli/README.md b/crates/cli/README.md
index 2b2a970..2dda7d9 100644
--- a/crates/cli/README.md
+++ b/crates/cli/README.md
@@ -16,4 +16,7 @@ A command line interface for rxing supporting encoding and decoding of barcode d
 `rxing-cli test_image.jpg decode`
 
 ## Example Multi Barcode Decode
-`rxing-cli test_image.jpg decode --decode-multi`
\ No newline at end of file
+`rxing-cli test_image.jpg decode --decode-multi`
+
+## Minimum Rust Version
+Currently building with a minimum rust version of 1.69. Versions below that are not tested and may not compile or run as expected.
\ No newline at end of file