diff --git a/.github/workflows/kind2-release.yml b/.github/workflows/kind2-release.yml
index 7a4672b37..653ef327f 100644
--- a/.github/workflows/kind2-release.yml
+++ b/.github/workflows/kind2-release.yml
@@ -66,7 +66,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-12, macos-14 ]
-        ocaml-version: [ 5.1.1 ]
+        ocaml-version: [ 5.2.0 ]
 
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/docker/Dockerfile b/docker/Dockerfile
index bae127f21..9f950a684 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM ocaml/opam:alpine-ocaml-5.1-flambda as builder
+FROM ocaml/opam:alpine-ocaml-5.2-flambda as builder
 
 USER root