diff --git a/.gitlab-ci/nix.conf b/.gitlab-ci/nix.conf
index 29c91aba8..884284cee 100644
--- a/.gitlab-ci/nix.conf
+++ b/.gitlab-ci/nix.conf
@@ -1,6 +1,6 @@
 sandbox = true
 experimental-features = nix-command flakes ca-references
-substituters = https://hydra.iohk.io https://cache.nixos.org/ s3://nix-cache?scheme=http&endpoint=minio-gitlab-runner-cache
+substituters = https://hydra.iohk.io https://cache.nixos.org/ s3://nix-cache?profile=default&scheme=http&endpoint=minio-gitlab-runner-cache
 trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= minio-gitlab-runner-cache:ZN5neq93MHqpnieHSBlxGgWvCL0WKrZ2S9QS+U5Bnro=
 require-sigs = true
 post-build-hook = /etc/nix/upload-to-cache.sh
\ No newline at end of file
diff --git a/.gitlab-ci/write-minio-creds.sh b/.gitlab-ci/write-minio-creds.sh
index e179a9614..90f0a57b8 100755
--- a/.gitlab-ci/write-minio-creds.sh
+++ b/.gitlab-ci/write-minio-creds.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#!nix-shell -i bash -p bash -p coreutils -p awscli2
+#!nix-shell -i bash -p bash -p coreutils
 
 mkdir -p $(dirname ${AWS_SHARED_CREDENTIALS_FILE})
 cat > ${AWS_SHARED_CREDENTIALS_FILE} <<EOF
@@ -7,5 +7,3 @@ cat > ${AWS_SHARED_CREDENTIALS_FILE} <<EOF
 aws_access_key_id = $(cat /minio-gitlab-runner-cache/accesskey)
 aws_secret_access_key = $(cat /minio-gitlab-runner-cache/secretkey)
 EOF
-
-aws s3 ls --endpoint-url http://minio-gitlab-runner-cache