diff --git a/Cargo.toml b/Cargo.toml
index be14144..a38ac01 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,9 +27,12 @@ wit-component = "0.254"
 # ISLE compiler and runtime.
 # Pinned to 0.132: cranelift-isle 0.133.x raised its MSRV to rustc 1.94.0, which
 # is not yet stable (stable is 1.93.1), breaking the wasm32-wasip2 build and
-# main CI (#236 bump). 0.132.x is the known-good line v1.1.13–v1.1.16 shipped on.
-# Revisit once rustc 1.94 is stable (or when the lockfile is committed, #142).
-cranelift-isle = "0.134"
+# main CI. 0.132.x is the known-good line v1.1.13–v1.1.16 shipped on.
+# NOTE: a dependency bump re-floated this to 0.134 (which resolves 0.134.2, MSRV
+# rustc 1.94.0) and reddened the wasm32-wasip2 build again — re-pinned here. Do
+# not widen the `^0.132` constraint without a stable rustc 1.94 or the committed
+# lockfile (#142); the float is what keeps reintroducing this red.
+cranelift-isle = "0.132"
 
 # CLI
 clap = { version = "4.5", features = ["derive", "cargo"] }