diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 103f319c..6cda5c49 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -35,6 +35,13 @@ jobs:
       - name: Remove pre-generated prost files to force regeneration
         run: rm proto/*.rs
 
+      - name: Set precise version to allow building on 1.64.0
+        run: |
+          cargo update -p anstyle --precise 1.0.0
+          cargo update -p clap_lex --precise 0.5.0
+          cargo update -p clap --precise 4.3.24
+          cargo update -p backtrace --precise 0.3.68
+
       - name: Run cargo clippy prost
         uses: actions-rs/cargo@v1.0.3
         with:
diff --git a/README.md b/README.md
index 3157599d..83f060ce 100644
--- a/README.md
+++ b/README.md
@@ -247,7 +247,7 @@ Unit tests have been added to guarantee there is no `malloc` in sample functions
 
 ## Minimum Supported Rust Version
 
-Rust 1.64 or higher.
+Rust 1.65 or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be done with a minor version bump.