diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 50832060..9e3c7b97 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -31,7 +31,7 @@ jobs:
             rust: stable
           - build: msrv
             os: ubuntu-latest
-            rust: 1.42.0
+            rust: 1.45.0
     steps:
     - uses: actions/checkout@master
     - name: Install Rust