diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6b38a1f5e..cbe19d980 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -313,7 +313,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2025-10-01
+          toolchain: nightly-2026-02-26
           components: clippy, rustfmt
 
       - name: Load cache
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index fc28df692..a96a116f9 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -31,7 +31,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2025-10-01
+          toolchain: nightly-2026-02-26
 
       - name: Install Node.js
         uses: actions/setup-node@v6
diff --git a/Cargo.toml b/Cargo.toml
index 028f44415..52b5c62d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ default-members = ["benchmarks", "crates/*"]
 resolver = "3"
 
 [workspace.package]
-rust-version = "1.88"
+rust-version = "1.93"
 
 [workspace.dependencies]
 anyhow = { version = "1.0.100", default-features = false }
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 9d777f977..f60f546dc 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -19,7 +19,7 @@ use release::ReleaseArgs;
 use swift::SwiftArgs;
 use xshell::{Shell, cmd};
 
-const NIGHTLY: &str = "nightly-2025-10-01";
+const NIGHTLY: &str = "nightly-2026-02-26";
 
 type Result<T, E = Box<dyn std::error::Error>> = std::result::Result<T, E>;