diff --git a/.github/workflows/build-machines-and-homes.yml b/.github/workflows/build-machines-and-homes.yml
index 7e715db..b0efb4d 100644
--- a/.github/workflows/build-machines-and-homes.yml
+++ b/.github/workflows/build-machines-and-homes.yml
@@ -8,6 +8,8 @@ env:
   TERM: ansi
   AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
   AWS_SECRET_ACCESS_KEY: ${{ secrets. AWS_SECRET_ACCESS_KEY }}
+  AWS_DEFAULT_REGION: us-east-1
+  AWS_ENDPOINT_URL: https://s3.cy7.sh
 
 jobs:
   build-machines:
@@ -77,7 +79,6 @@ jobs:
             push \
             --bucket nixcache \
             --signing-key ${{ runner.temp }}/cache-priv-key.pem \
-            --endpoint https://s3.cy7.sh \
             -u https://nix-community.cachix.org \
             $package
 
@@ -148,6 +149,5 @@ jobs:
             push \
             --bucket nixcache \
             --signing-key ${{ runner.temp }}/cache-priv-key.pem \
-            --endpoint https://s3.cy7.sh \
             -u https://nix-community.cachix.org \
             $package
diff --git a/.github/workflows/build-packages.yml b/.github/workflows/build-packages.yml
index 072672b..48a5e13 100644
--- a/.github/workflows/build-packages.yml
+++ b/.github/workflows/build-packages.yml
@@ -11,6 +11,8 @@ env:
   TERM: ansi
   AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
   AWS_SECRET_ACCESS_KEY: ${{ secrets. AWS_SECRET_ACCESS_KEY }}
+  AWS_DEFAULT_REGION: us-east-1
+  AWS_ENDPOINT_URL: https://s3.cy7.sh
 
 jobs:
   build-packages:
@@ -65,7 +67,6 @@ jobs:
             push \
             --bucket nixcache \
             --signing-key ${{ runner.temp }}/cache-priv-key.pem \
-            --endpoint https://s3.cy7.sh \
             -u https://nix-community.cachix.org \
             "${{ matrix.package }}"