diff --git a/flake.nix b/flake.nix
index f0dcb6fb..25629621 100644
--- a/flake.nix
+++ b/flake.nix
@@ -36,7 +36,7 @@
           file = ./rust-toolchain.toml;
 
           # See also `rust-toolchain.toml`
-          sha256 = "sha256-KUm16pHj+cRedf8vxs/Hd2YWxpOrWZ7UOrwhILdSJBU=";
+          sha256 = "sha256-+9FmLhAOezBZCOziO0Qct1NOrfpjNsXxc/8I0c7BdKE=";
         };
 
         mkScope =
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index bdb608aa..c44e95ef 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -9,8 +9,8 @@
 # If you're having trouble making the relevant changes, bug a maintainer.
 
 [toolchain]
-channel = "1.87.0"
 profile = "minimal"
+channel = "1.89.0"
 components = [
     # For rust-analyzer
     "rust-src",