diff --git a/lakefile.toml b/lakefile.toml
index e575c71..63e0d87 100644
--- a/lakefile.toml
+++ b/lakefile.toml
@@ -6,7 +6,7 @@ precompileModules = false # We would like to turn this on, but it breaks the Mat
 [[require]]
 name = "batteries"
 git = "https://github.com/leanprover-community/batteries"
-rev = "v4.16.0-rc1"
+rev = "v4.16.0-rc2"
 
 [[lean_lib]]
 name = "Aesop"
diff --git a/lean-toolchain b/lean-toolchain
index 62ccd71..a3edb8f 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.16.0-rc1
+leanprover/lean4:v4.16.0-rc2