diff --git a/cranelift/codegen/Cargo.toml b/cranelift/codegen/Cargo.toml
index 3a3ca5b61a..3bc3724605 100644
--- a/cranelift/codegen/Cargo.toml
+++ b/cranelift/codegen/Cargo.toml
@@ -35,7 +35,7 @@ criterion = "0.3"
 
 [build-dependencies]
 cranelift-codegen-meta = { path = "meta", version = "0.78.0" }
-isle = { path = "../isle/isle", version = "0.78.0", optional = true }
+isle = { path = "../isle/isle", version = "=0.78.0", optional = true }
 miette = { version = "3", features = ["fancy"], optional = true }
 sha2 = "0.9.8"