diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dbb0198..2a500ca 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
       matrix:
         rustup-toolchain:
           - stable
-          - "1.51"
+          - "1.61"
         ruby-version:
           - "3.0"
           - "3.1"
diff --git a/Cargo.toml b/Cargo.toml
index e4ff9c3..01af4c3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "serde_magnus"
 version = "0.2.2"
 description = "Serde integration for Magnus"
 edition = "2018"
-rust-version = "1.51"
+rust-version = "1.61"
 authors = ["George Claghorn <georgeclaghorn@gmail.com>"]
 repository = "https://github.com/georgeclaghorn/serde-magnus"
 homepage = "https://github.com/georgeclaghorn/serde-magnus"
diff --git a/README.md b/README.md
index a0e66d4..6a171f3 100644
--- a/README.md
+++ b/README.md
@@ -111,7 +111,7 @@ assert_eq!(
 
 ## Requirements
 
-`serde_magnus` requires Rust 1.51+ and Ruby 3.0+.
+`serde_magnus` requires Rust 1.61+ and Ruby 3.0+.
 
 ## License