diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index bc9a4d5..946aa41 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -4,4 +4,4 @@ updates:
   - package-ecosystem: github-actions
     directory: /
     schedule:
-      interval: weekly
+      interval: monthly
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 886c741..10e923d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,15 +16,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        dune-version: [3.19.1]
+        dune-version: [3.20.2]
         ocaml-version: [5.3.0]
         camlp5-version: [8.03.06]
-        hol-light-version: [3.1.0]
-        hol-light-commit: [master]
+        hol-light-version: [3.0.0]
+        hol-light-commit: [72b2b70]
         lambdapi-version: [master] # >= 3.0.0
-        rocq-version: [9.0.0]
         dedukti-version: [2.7]
-        mapping: [mappings_N]
+        #rocq-version: [9.0.0]
     runs-on: ubuntu-latest
     steps:
     # actions/checkout must be done BEFORE avsm/setup-ocaml
@@ -41,16 +40,18 @@ jobs:
           eval `opam env`
           dune build
           dune install
-      - name: Install dependencies
+      - name: Install dedukti
         run: |
-          opam install -y --deps-only hol_light.${{ matrix.hol-light-version }}
-          opam install -y dedukti.${{ matrix.dedukti-version }} rocq-prover.${{ matrix.rocq-version }}
+          opam install -y dedukti.${{ matrix.dedukti-version }}
       - name: Install lambdapi
         run: |
           git clone --depth 1 -b ${{ matrix.lambdapi-version }} https://github.com/Deducteam/lambdapi
           sudo apt-get install -y libev-dev
           opam pin lambdapi lambdapi
           opam install -y lambdapi
+      - name: Install HOL-Light dependencies
+        run: |
+          opam install -y --deps-only hol_light.${{ matrix.hol-light-version }}
       - name: Get hol-light and patch it
         run: |
           eval `opam env`
@@ -58,7 +59,7 @@ jobs:
           export HOLLIGHT_DIR=`pwd`/hol-light
           git clone https://github.com/jrh13/hol-light
           cd hol-light
-          #git checkout ${{ matrix.hol-light-commit }}
+          git checkout ${{ matrix.hol-light-commit }}
           make
           hol2dk patch
       - name: Dump proofs
diff --git a/main.ml b/main.ml
index 0b07d3c..0e7f020 100644
--- a/main.ml
+++ b/main.ml
@@ -305,7 +305,7 @@ let print_hstats() =
 let call_script s args =
   match Sys.getenv_opt "HOL2DK_DIR" with
   | None -> err "set $HOL2DK_DIR first\n"; exit 1
-  | Some d -> exit (Sys.command (d^"/"^s^" "^String.concat " " args))
+  | Some d -> exit (Sys.command ("sh "^d^"/"^s^" "^String.concat " " args))
 ;;
 
 let print_env_var n =