diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index cf6d0f5..e88baf1 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.86.0"
+channel = "1.88.0"
diff --git a/shootout/rust-toolchain.toml b/shootout/rust-toolchain.toml
index cf6d0f5..e88baf1 100644
--- a/shootout/rust-toolchain.toml
+++ b/shootout/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.86.0"
+channel = "1.88.0"