diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index 929561f65c..3060eb52a0 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -48,7 +48,7 @@ jobs:
         uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
         with:
           path: ~/environments/${{ matrix.compiler }}-${{ matrix.hdf5 }}-${{ matrix.netcdf }}-${{ matrix.cgns }}
-          key: TPL-v1-${{ runner.os }}-${{ matrix.compiler }}-${{ matrix.hdf5 }}-${{ matrix.netcdf }}-${{ matrix.cgns }}
+          key: TPL-v2-${{ runner.os }}-${{ matrix.compiler }}-${{ matrix.hdf5 }}-${{ matrix.netcdf }}-${{ matrix.cgns }}
 
       - name: Build TPL-${{ matrix.compiler }}-${{ matrix.hdf5 }}-${{ matrix.netcdf }}-${{ matrix.cgns }}
         if: steps.cache-TPL.outputs.cache-hit != 'true'
@@ -91,7 +91,7 @@ jobs:
         uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
         with:
           path: ~/environments/${{ matrix.compiler }}-${{ matrix.hdf5 }}-${{ matrix.netcdf }}-${{ matrix.cgns }}
-          key: TPL-v1-${{ runner.os }}-${{ matrix.compiler }}-${{ matrix.hdf5 }}-${{ matrix.netcdf }}-${{ matrix.cgns }}
+          key: TPL-v2-${{ runner.os }}-${{ matrix.compiler }}-${{ matrix.hdf5 }}-${{ matrix.netcdf }}-${{ matrix.cgns }}
 
       - name: Check Cache
         shell: bash -l {0}