diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index 5297518f..a7bf40f2 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -20,7 +20,7 @@ jobs:
           path: |
             ~/.stack
             .stack-work
-          key: stack-${{ runner.os }}-8.10-${{ hashFiles('stack-ghc-8.10.yaml.lock') }}
+          key: stack-${{ runner.os }}-8.10-${{ hashFiles('stack-ghc-8.10.yaml.lock') }}-2
           restore-keys: |
             stack-${{ runner.os }}-8.10
       - run: stack --stack-yaml stack-ghc-8.10.yaml build --only-dependencies
@@ -45,7 +45,7 @@ jobs:
           path: |
             ~/.stack
             .stack-work
-          key: stack-${{ runner.os }}-${{ hashFiles('stack.yaml.lock') }}
+          key: stack-${{ runner.os }}-${{ hashFiles('stack.yaml.lock') }}-2
           restore-keys: |
             stack-${{ runner.os }}
       - run: stack build --only-dependencies
@@ -70,7 +70,7 @@ jobs:
           path: |
             ~/.stack
             .stack-work
-          key: stack-${{ runner.os }}-9.2-${{ hashFiles('stack-ghc-9.2.yaml.lock') }}
+          key: stack-${{ runner.os }}-9.2-${{ hashFiles('stack-ghc-9.2.yaml.lock') }}-2
           restore-keys: |
             stack-${{ runner.os }}-9.2
       - run: stack --stack-yaml stack-ghc-9.2.yaml build --only-dependencies