diff --git a/9.6/bullseye/Dockerfile b/9.6/bullseye/Dockerfile
index aa3acda..3a64133 100644
--- a/9.6/bullseye/Dockerfile
+++ b/9.6/bullseye/Dockerfile
@@ -55,10 +55,10 @@ RUN set -eux; \
     # sha256 from https://downloads.haskell.org/~cabal/cabal-install-$CABAL_INSTALL/SHA256SUMS
     case "$ARCH" in \
         'aarch64') \
-            CABAL_INSTALL_SHA256='c14e8198407f37f7276c77b5cefef60ee6a929b4c22d7316577ce8e2301a758e'; \
+            CABAL_INSTALL_SHA256='e0b6604d3596c5e5b7236e79ff4f5aa8af337792bf69ac4a90634c761f1b9ed5'; \
             ;; \
         'x86_64') \
-            CABAL_INSTALL_SHA256='4f60cf1c72f4ad4d82d668839ac61ae15ae4faf6c4b809395799e8a3ee622051'; \
+            CABAL_INSTALL_SHA256='12d018bdd07efed470f278f22d94b33655c4fcbc44d28d97b5ebb7944d5607c5'; \
             ;; \
         *) echo >&2 "error: unsupported architecture '$ARCH'"; exit 1 ;; \
     esac; \
diff --git a/9.6/slim-bullseye/Dockerfile b/9.6/slim-bullseye/Dockerfile
index cb2d967..bae39d2 100644
--- a/9.6/slim-bullseye/Dockerfile
+++ b/9.6/slim-bullseye/Dockerfile
@@ -69,10 +69,10 @@ RUN set -eux; \
     # sha256 from https://downloads.haskell.org/~cabal/cabal-install-$CABAL_INSTALL/SHA256SUMS
     case "$ARCH" in \
         'aarch64') \
-            CABAL_INSTALL_SHA256='c14e8198407f37f7276c77b5cefef60ee6a929b4c22d7316577ce8e2301a758e'; \
+            CABAL_INSTALL_SHA256='e0b6604d3596c5e5b7236e79ff4f5aa8af337792bf69ac4a90634c761f1b9ed5'; \
             ;; \
         'x86_64') \
-            CABAL_INSTALL_SHA256='4f60cf1c72f4ad4d82d668839ac61ae15ae4faf6c4b809395799e8a3ee622051'; \
+            CABAL_INSTALL_SHA256='12d018bdd07efed470f278f22d94b33655c4fcbc44d28d97b5ebb7944d5607c5'; \
             ;; \
         *) echo >&2 "error: unsupported architecture '$ARCH'"; exit 1 ;; \
     esac; \