diff --git a/test/gh-darwin/pre/action.yml b/test/gh-darwin/pre/action.yml
index cd4b1158..6be4a6b2 100644
--- a/test/gh-darwin/pre/action.yml
+++ b/test/gh-darwin/pre/action.yml
@@ -1768,7 +1768,7 @@ runs:
       shell: bash
       run: |
         set -x
-        echo 'c7449a-${{ inputs.FDOPEN_OPAMEXE_BOOTSTRAP }}-${{ steps.full_matrix_vars.outputs.dkml_host_abi }}-${{ steps.full_matrix_vars.outputs.opam_abi }}-${{ steps.full_matrix_vars.outputs.bootstrap_opam_version }}' > .ci/sd4/cachekey.opam.binaries
+        echo 'f56320-${{ inputs.FDOPEN_OPAMEXE_BOOTSTRAP }}-${{ steps.full_matrix_vars.outputs.dkml_host_abi }}-${{ steps.full_matrix_vars.outputs.opam_abi }}-${{ steps.full_matrix_vars.outputs.bootstrap_opam_version }}' > .ci/sd4/cachekey.opam.binaries
         echo '${{ steps.full_matrix_vars.outputs.abi_pattern }}-${{ steps.full_matrix_vars.outputs.vsstudio_arch }}-${{ steps.full_matrix_vars.outputs.vsstudio_hostarch }}-${{ steps.full_matrix_vars.outputs.vsstudio_dir }}-${{ steps.full_matrix_vars.outputs.vsstudio_vcvarsver }}-${{ steps.full_matrix_vars.outputs.vsstudio_winsdkver }}-${{ steps.full_matrix_vars.outputs.vsstudio_msvspreference }}-${{ steps.full_matrix_vars.outputs.vsstudio_cmakegenerator }}' > .ci/sd4/cachekey.vsstudio
         echo '${{ inputs.OCAML_COMPILER }}-${{ inputs.DISKUV_OPAM_REPOSITORY }}-${{ inputs.DKML_COMPILER }}-${{ inputs.CONF_DKML_CROSS_TOOLCHAIN }}' > .ci/sd4/cachekey.ci.inputs
 
diff --git a/test/gh-linux/pre/action.yml b/test/gh-linux/pre/action.yml
index 55faae6b..0abd61a3 100644
--- a/test/gh-linux/pre/action.yml
+++ b/test/gh-linux/pre/action.yml
@@ -1796,7 +1796,7 @@ runs:
       shell: bash
       run: |
         set -x
-        echo 'c7449a-${{ inputs.FDOPEN_OPAMEXE_BOOTSTRAP }}-${{ steps.full_matrix_vars.outputs.dkml_host_abi }}-${{ steps.full_matrix_vars.outputs.opam_abi }}-${{ steps.full_matrix_vars.outputs.bootstrap_opam_version }}' > .ci/sd4/cachekey.opam.binaries
+        echo 'f56320-${{ inputs.FDOPEN_OPAMEXE_BOOTSTRAP }}-${{ steps.full_matrix_vars.outputs.dkml_host_abi }}-${{ steps.full_matrix_vars.outputs.opam_abi }}-${{ steps.full_matrix_vars.outputs.bootstrap_opam_version }}' > .ci/sd4/cachekey.opam.binaries
         echo '${{ steps.full_matrix_vars.outputs.abi_pattern }}-${{ steps.full_matrix_vars.outputs.vsstudio_arch }}-${{ steps.full_matrix_vars.outputs.vsstudio_hostarch }}-${{ steps.full_matrix_vars.outputs.vsstudio_dir }}-${{ steps.full_matrix_vars.outputs.vsstudio_vcvarsver }}-${{ steps.full_matrix_vars.outputs.vsstudio_winsdkver }}-${{ steps.full_matrix_vars.outputs.vsstudio_msvspreference }}-${{ steps.full_matrix_vars.outputs.vsstudio_cmakegenerator }}' > .ci/sd4/cachekey.vsstudio
         echo '${{ inputs.OCAML_COMPILER }}-${{ inputs.DISKUV_OPAM_REPOSITORY }}-${{ inputs.DKML_COMPILER }}-${{ inputs.CONF_DKML_CROSS_TOOLCHAIN }}' > .ci/sd4/cachekey.ci.inputs
 
diff --git a/test/gh-windows/pre/action.yml b/test/gh-windows/pre/action.yml
index 083870d7..17523a5e 100644
--- a/test/gh-windows/pre/action.yml
+++ b/test/gh-windows/pre/action.yml
@@ -1967,7 +1967,7 @@ runs:
       shell: bash
       run: |
         set -x
-        echo 'c7449a-${{ inputs.FDOPEN_OPAMEXE_BOOTSTRAP }}-${{ steps.full_matrix_vars.outputs.dkml_host_abi }}-${{ steps.full_matrix_vars.outputs.opam_abi }}-${{ steps.full_matrix_vars.outputs.bootstrap_opam_version }}' > .ci/sd4/cachekey.opam.binaries
+        echo 'f56320-${{ inputs.FDOPEN_OPAMEXE_BOOTSTRAP }}-${{ steps.full_matrix_vars.outputs.dkml_host_abi }}-${{ steps.full_matrix_vars.outputs.opam_abi }}-${{ steps.full_matrix_vars.outputs.bootstrap_opam_version }}' > .ci/sd4/cachekey.opam.binaries
         echo '${{ steps.full_matrix_vars.outputs.abi_pattern }}-${{ steps.full_matrix_vars.outputs.vsstudio_arch }}-${{ steps.full_matrix_vars.outputs.vsstudio_hostarch }}-${{ steps.full_matrix_vars.outputs.vsstudio_dir }}-${{ steps.full_matrix_vars.outputs.vsstudio_vcvarsver }}-${{ steps.full_matrix_vars.outputs.vsstudio_winsdkver }}-${{ steps.full_matrix_vars.outputs.vsstudio_msvspreference }}-${{ steps.full_matrix_vars.outputs.vsstudio_cmakegenerator }}' > .ci/sd4/cachekey.vsstudio
         echo '${{ inputs.OCAML_COMPILER }}-${{ inputs.DISKUV_OPAM_REPOSITORY }}-${{ inputs.DKML_COMPILER }}-${{ inputs.CONF_DKML_CROSS_TOOLCHAIN }}' > .ci/sd4/cachekey.ci.inputs