diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fe7515f1b5..401fae82f9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ env:
   CAIRO_VM_VERSION: 06e8ddbfa14eef85f56c4d7b7631c17c9b0a248e
   RISC0_VM_VERSION: v1.0.1
   JUST_ARGS: runtimeCcArg=$CC runtimeLibtoolArg=$LIBTOOL
-  STACK_BUILD_ARGS: --pedantic -j4 --ghc-options=-j
+  STACK_BUILD_ARGS: --pedantic -j4 --ghc-options=-j --stack-yaml=stack.yaml
 
 jobs:
   pre-commit:
@@ -44,7 +44,7 @@ jobs:
   ormolu:
     runs-on: ubuntu-latest
     env:
-      STACK_RESOLVER: nightly-2024-05-31
+      STACK_RESOLVER: lts-21.25
     steps:
       - uses: actions/checkout@v3
       - uses: extractions/setup-just@v2