diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 37f24faf..5863e343 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
         ocaml-compiler:
             - '4.08'
             - '4.14'
-            - '5.1'
+            - '5.2'
 
     runs-on: ${{ matrix.os }}
     steps:
@@ -31,14 +31,14 @@ jobs:
           allow-prerelease-opam: true
 
       - run: opam install -t moonpool moonpool-lwt --deps-only
-        if: matrix.ocaml-compiler == '5.1'
+        if: matrix.ocaml-compiler == '5.2'
       - run: opam install -t moonpool --deps-only
-        if: matrix.ocaml-compiler != '5.1'
+        if: matrix.ocaml-compiler != '5.2'
       - run: opam exec -- dune build @install
 
       # install some depopts
       - run: opam install thread-local-storage trace domain-local-await
-        if: matrix.ocaml-compiler == '5.1'
+        if: matrix.ocaml-compiler == '5.2'
 
       - run: opam exec -- dune build --profile=release --force @install @runtest
 
@@ -52,7 +52,7 @@ jobs:
             - macos-latest
               #- windows-latest
         ocaml-compiler:
-            - '5.1'
+            - '5.2'
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@main
@@ -74,7 +74,7 @@ jobs:
     strategy:
       matrix:
         ocaml-compiler:
-            - '5.1'
+            - '5.2'
     runs-on: 'ubuntu-latest'
     steps:
       - uses: actions/checkout@main
@@ -85,6 +85,6 @@ jobs:
           dune-cache: true
           allow-prerelease-opam: true
 
-      - run: opam install ocamlformat.0.24.1
+      - run: opam install ocamlformat.0.26.2
       - run: opam exec -- make format-check
 
diff --git a/.ocamlformat b/.ocamlformat
index 2124d7dd..78183459 100644
--- a/.ocamlformat
+++ b/.ocamlformat
@@ -1,4 +1,4 @@
-version = 0.24.1
+version = 0.26.2
 profile=conventional
 margin=80
 if-then-else=k-r