diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a3094304..4ad98da9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -73,17 +73,17 @@ jobs:
 
       - uses: ocaml/setup-ocaml@v3
         with:
-          ocaml-compiler: "4.14.2"
+          ocaml-compiler: "5.2.0"
           opam-disable-sandboxing: true
           dune-cache: false
           # opam-repositories: |
           #   default: git+https://github.com/fdopen/opam-repository-mingw.git#opam2
 
-      - run: opam switch create 4.14.2-mingw64 arch-x86_64 system-mingw ocaml.4.14.2
+      - run: opam switch create 5.2.0-mingw64 arch-x86_64 system-mingw ocaml.5.2.0
 
       - name: Install deps & build
         run: |
-          opam switch 4.14.2-mingw64
+          opam switch 5.2.0-mingw64
           opam install .  --with-test
           opam exec -- dune build --verbose
 
diff --git a/dune-project b/dune-project
index b4083059..b13970a9 100644
--- a/dune-project
+++ b/dune-project
@@ -32,7 +32,7 @@
  (synopsis "Pixel-by-pixel image difference algorithm")
  (depends
   dune
-  (ocaml (= 4.14.2))
+  (ocaml (= 5.2.0))
  )
 )
 
@@ -42,7 +42,7 @@
  (depends
   dune
   odiff-core
-  (ocaml (= 4.14.2))
+  (ocaml (= 5.2.0))
   (dune-configurator (>= 2.8))
  )
 )
diff --git a/odiff-core.opam b/odiff-core.opam
index c58ee628..f5cd5069 100644
--- a/odiff-core.opam
+++ b/odiff-core.opam
@@ -8,7 +8,7 @@ homepage: "https://github.com/dmtrKovalenko/odiff"
 bug-reports: "https://github.com/dmtrKovalenko/odiff/issues"
 depends: [
   "dune" {>= "2.8"}
-  "ocaml" {= "4.14.2"}
+  "ocaml" {= "5.2.0"}
   "odoc" {with-doc}
 ]
 build: [
@@ -16,7 +16,6 @@ build: [
   [
     "dune"
     "build"
-    "--verbose"
     "-p"
     name
     "-j"
diff --git a/odiff-io.opam b/odiff-io.opam
index 721365a5..a1199481 100644
--- a/odiff-io.opam
+++ b/odiff-io.opam
@@ -9,7 +9,7 @@ bug-reports: "https://github.com/dmtrKovalenko/odiff/issues"
 depends: [
   "dune" {>= "2.8"}
   "odiff-core"
-  "ocaml" {= "4.14.2"}
+  "ocaml" {= "5.2.0"}
   "dune-configurator" {>= "2.8"}
   "odoc" {with-doc}
 ]