diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5e711620..f3e79939 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,8 +63,8 @@ jobs:
             - name: Apply Nix binary cache configuration
               run: |
                   sudo tee -a /etc/nix/nix.conf > /dev/null <<EOF
-                  extra-substituters = https://nix.computer.surgery/conduit https://attic.kennel.juneis.dog/conduit https://attic.kennel.juneis.dog/conduwuit
-                  extra-trusted-public-keys = conduit:ZGAf6P6LhNvnoJJ3Me3PRg7tlLSrPxcQ2RiE5LIppjo= conduit:Isq8FGyEC6FOXH6nD+BOeAA+bKp6X6UIbupSlGEPuOg= conduwuit:lYPVh7o1hLu1idH4Xt2QHaRa49WRGSAqzcfFd94aOTw=
+                  extra-substituters = https://attic.kennel.juneis.dog/conduit https://attic.kennel.juneis.dog/conduwuit
+                  extra-trusted-public-keys = conduit:Isq8FGyEC6FOXH6nD+BOeAA+bKp6X6UIbupSlGEPuOg= conduwuit:lYPVh7o1hLu1idH4Xt2QHaRa49WRGSAqzcfFd94aOTw=
                   EOF
 
             - name: Use alternative Nix binary caches if specified
@@ -156,8 +156,8 @@ jobs:
             - name: Apply Nix binary cache configuration
               run: |
                   sudo tee -a /etc/nix/nix.conf > /dev/null <<EOF
-                  extra-substituters = https://nix.computer.surgery/conduit https://attic.kennel.juneis.dog/conduit https://attic.kennel.juneis.dog/conduwuit
-                  extra-trusted-public-keys = conduit:ZGAf6P6LhNvnoJJ3Me3PRg7tlLSrPxcQ2RiE5LIppjo= conduit:Isq8FGyEC6FOXH6nD+BOeAA+bKp6X6UIbupSlGEPuOg= conduwuit:lYPVh7o1hLu1idH4Xt2QHaRa49WRGSAqzcfFd94aOTw=
+                  extra-substituters = https://attic.kennel.juneis.dog/conduit https://attic.kennel.juneis.dog/conduwuit
+                  extra-trusted-public-keys = conduit:Isq8FGyEC6FOXH6nD+BOeAA+bKp6X6UIbupSlGEPuOg= conduwuit:lYPVh7o1hLu1idH4Xt2QHaRa49WRGSAqzcfFd94aOTw=
                   EOF
 
             - name: Use alternative Nix binary caches if specified
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index fe6c9626..de8087c9 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -58,8 +58,6 @@ jobs:
             extra-trusted-public-keys = nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=
             extra-substituters = https://crane.cachix.org
             extra-trusted-public-keys = crane.cachix.org-1:8Scfpmn9w+hGdXH/Q9tTLiYAE/2dnJYRJP7kl80GuRk=
-            extra-substituters = https://nix.computer.surgery/conduit
-            extra-trusted-public-keys = conduit:ZGAf6P6LhNvnoJJ3Me3PRg7tlLSrPxcQ2RiE5LIppjo=
             extra-substituters = https://attic.kennel.juneis.dog/conduit
             extra-trusted-public-keys = conduit:Isq8FGyEC6FOXH6nD+BOeAA+bKp6X6UIbupSlGEPuOg=
             extra-substituters = https://attic.kennel.juneis.dog/conduwuit
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4a3b1c25..76654d15 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -27,10 +27,6 @@ before_script:
   - if command -v nix > /dev/null; then echo "extra-substituters = https://attic.kennel.juneis.dog/conduit" >> /etc/nix/nix.conf; fi
   - if command -v nix > /dev/null; then echo "extra-trusted-public-keys = conduit:Isq8FGyEC6FOXH6nD+BOeAA+bKp6X6UIbupSlGEPuOg=" >> /etc/nix/nix.conf; fi
 
-  # Add upstream Conduit binary cache
-  - if command -v nix > /dev/null; then echo "extra-substituters = https://nix.computer.surgery/conduit" >> /etc/nix/nix.conf; fi
-  - if command -v nix > /dev/null; then echo "extra-trusted-public-keys = conduit:ZGAf6P6LhNvnoJJ3Me3PRg7tlLSrPxcQ2RiE5LIppjo=" >> /etc/nix/nix.conf; fi
-
   # Add alternate binary cache
   - if command -v nix > /dev/null && [ -n "$ATTIC_ENDPOINT" ]; then echo "extra-substituters = $ATTIC_ENDPOINT" >> /etc/nix/nix.conf; fi
   - if command -v nix > /dev/null && [ -n "$ATTIC_PUBLIC_KEY" ]; then echo "extra-trusted-public-keys = $ATTIC_PUBLIC_KEY" >> /etc/nix/nix.conf; fi