diff --git a/test/50/foo/lean-toolchain b/test/50/foo/lean-toolchain
deleted file mode 100644
index 03095f8168..0000000000
--- a/test/50/foo/lean-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-leanprover/lean4:nightly-2022-06-14
diff --git a/test/75/foo/lean-toolchain b/test/75/foo/lean-toolchain
deleted file mode 100644
index 03095f8168..0000000000
--- a/test/75/foo/lean-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-leanprover/lean4:nightly-2022-06-14