diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fe73dd70..abd48595 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,7 +43,7 @@ jobs:
       - name: Install Rust
         if: steps.rust-cache.outputs.cache-hit != 'true'
         run: |
-            rustup default 1.66
+            rustup default 1.81
             rustup component add rustfmt
             rustup component add clippy
 
diff --git a/Cargo.toml b/Cargo.toml
index caa42059..ec374407 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ readme = "README.md"
 license = "MIT OR Apache-2.0"
 version = "2.2.0"
 edition = "2021"
-rust-version = "1.66"
+rust-version = "1.81"
 authors = ["Christopher Berner <me@cberner.com>"]
 exclude = ["fuzz/"]
 
diff --git a/rust-toolchain b/rust-toolchain
index 9cf4011b..ea3769f2 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.66
+1.81