diff --git a/.github/workflows/centos.yml b/.github/workflows/centos.yml
index 8217e6505..761273588 100644
--- a/.github/workflows/centos.yml
+++ b/.github/workflows/centos.yml
@@ -16,7 +16,7 @@ jobs:
     - name: install deps
       run: |
         yum install -y gcc gmp gmp-devel make ncurses ncurses-compat-libs ncurses-devel xz perl libstdc++-static
-        curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 sh
+        curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_GHC_VERSION=9.2.8 sh
     - uses: actions/checkout@v3
     - name: Test
       run: |
diff --git a/.github/workflows/i386.yml b/.github/workflows/i386.yml
index 5ece5ea2e..41b6a083d 100644
--- a/.github/workflows/i386.yml
+++ b/.github/workflows/i386.yml
@@ -17,7 +17,7 @@ jobs:
       run: |
         apt-get update -y
         apt-get install -y autoconf build-essential zlib1g-dev libgmp-dev curl libncurses5 libtinfo5 libncurses5-dev libtinfo-dev
-        curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 sh
+        curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_INSTALL_NO_STACK=1 sh
     - uses: actions/checkout@v1
     - name: Test
       run: |