diff --git a/README.md b/README.md
index 91c0de6..8378e70 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Duper is an automatic proof-producing theorem prover broadly similar to Isabelle
 To use Duper in an existing Lean 4 project, first add this package as a dependency. In your lakefile.lean, add:
 
 ```lean
-require Duper from git "https://github.com/leanprover-community/duper.git" @ "v4.25.1"
+require Duper from git "https://github.com/leanprover-community/duper.git" @ "v4.25.2"
 ```
 
 Then, make sure that your `lean-toolchain` file contains the same version of Lean 4 as Duper and that if your project imports [batteries](https://github.com/leanprover-community/batteries), then it uses the same version of batteries as Duper. This step is necessary because Duper depends on batteries, so errors can arise if your project attempts to import a version of batteries different from the one imported by Duper.
diff --git a/lake-manifest.json b/lake-manifest.json
index c9c1d64..f402e39 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -15,10 +15,10 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "298bc7e250822ab3bb01271f07d5718f558ed1c2",
+   "rev": "e1ef2099e666103b85cd099a1ab5086ede15e7c0",
    "name": "auto",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.25.1-hammer",
+   "inputRev": "v4.25.2-hammer",
    "inherited": false,
    "configFile": "lakefile.lean"}],
  "name": "Duper",
diff --git a/lakefile.lean b/lakefile.lean
index 299b3e4..9fbfddf 100644
--- a/lakefile.lean
+++ b/lakefile.lean
@@ -2,7 +2,7 @@ import Lake
 
 open Lake DSL
 
-require auto from git "https://github.com/leanprover-community/lean-auto.git"@"v4.25.1-hammer"
+require auto from git "https://github.com/leanprover-community/lean-auto.git"@"v4.25.2-hammer"
 require batteries from git "https://github.com/leanprover-community/batteries" @ "v4.25.1"
 
 package Duper {
diff --git a/lean-toolchain b/lean-toolchain
index 4bd92b6..370b26d 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.25.1
+leanprover/lean4:v4.25.2