diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1f0ed0eef3e..618d8ad33a3 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -54,6 +54,9 @@ jobs:
         uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: 4
+          opam-repositories: |
+            opam-repository-libpcre2: https://github.com/tobil4sk/opam-repository.git#libpcre2
+            default: https://github.com/ocaml/opam-repository.git
           opam-local-packages: |
             haxe.opam
 
diff --git a/extra/github-actions/install-ocaml-windows64.yml b/extra/github-actions/install-ocaml-windows64.yml
index 77e8477b6a8..f6fa1f26bf5 100644
--- a/extra/github-actions/install-ocaml-windows64.yml
+++ b/extra/github-actions/install-ocaml-windows64.yml
@@ -2,6 +2,9 @@
   uses: ocaml/setup-ocaml@v3
   with:
     ocaml-compiler: 4
+    opam-repositories: |
+      opam-repository-libpcre2: https://github.com/tobil4sk/opam-repository.git#libpcre2
+      default: https://github.com/ocaml/opam-repository.git
     opam-local-packages: |
       haxe.opam