diff --git a/.github/workflows/backend.yml b/.github/workflows/backend.yml
index 26a85c3dd..b83c7fa3d 100644
--- a/.github/workflows/backend.yml
+++ b/.github/workflows/backend.yml
@@ -12,7 +12,7 @@ on:
 
 env:
   DOCKER_IMAGE_NAME: ghcr.io/loculus-project/backend
-  BUILD_ARM: ${{ github.ref == 'refs/heads/main' || github.event.inputs.build_arm }}
+  BUILD_ARM: "true"
 
 concurrency:
   group: ci-${{ github.ref == 'refs/heads/main' && github.run_id || github.ref }}-backend
diff --git a/.github/workflows/config-preprocessor-build.yml b/.github/workflows/config-preprocessor-build.yml
index 9f395785c..5c057a591 100644
--- a/.github/workflows/config-preprocessor-build.yml
+++ b/.github/workflows/config-preprocessor-build.yml
@@ -12,7 +12,7 @@ on:
 
 env:
   DOCKER_IMAGE_NAME: ghcr.io/loculus-project/config-processor
-  BUILD_ARM: ${{ github.ref == 'refs/heads/main' || github.event.inputs.build_arm }} # When to build for arm as well
+  BUILD_ARM: "true"
 
 defaults:
   run:
diff --git a/.github/workflows/dummyPreprocessing.yml b/.github/workflows/dummyPreprocessing.yml
index 8898dc018..b8f311142 100644
--- a/.github/workflows/dummyPreprocessing.yml
+++ b/.github/workflows/dummyPreprocessing.yml
@@ -12,7 +12,7 @@ on:
 
 env:
   DOCKER_IMAGE_NAME: ghcr.io/loculus-project/preprocessing-dummy
-  BUILD_ARM: ${{ github.ref == 'refs/heads/main' || github.event.inputs.build_arm }} # When to build for arm as well
+  BUILD_ARM: "true"
 
 concurrency:
   group: ci-${{ github.ref == 'refs/heads/main' && github.run_id || github.ref }}-preprocessing-dummy
diff --git a/.github/workflows/ingest.yml b/.github/workflows/ingest.yml
index c20940853..5dd0526fd 100644
--- a/.github/workflows/ingest.yml
+++ b/.github/workflows/ingest.yml
@@ -11,7 +11,7 @@ on:
 
 env:
   DOCKER_IMAGE_NAME: ghcr.io/loculus-project/ingest
-  BUILD_ARM: ${{ github.ref == 'refs/heads/main' || github.event.inputs.build_arm }}
+  BUILD_ARM: "true"
 
 concurrency:
   group: ci-${{ github.ref == 'refs/heads/main' && github.run_id || github.ref }}-ingest
diff --git a/.github/workflows/keycloakify-build.yml b/.github/workflows/keycloakify-build.yml
index 114308cda..fec94f387 100644
--- a/.github/workflows/keycloakify-build.yml
+++ b/.github/workflows/keycloakify-build.yml
@@ -12,7 +12,7 @@ on:
 
 env:
   DOCKER_IMAGE_NAME: ghcr.io/loculus-project/keycloakify
-  BUILD_ARM: ${{ github.ref == 'refs/heads/main' || github.event.inputs.build_arm }} # When to build for arm as well
+  BUILD_ARM: "true"
 
 concurrency:
   group: ci-${{ github.ref == 'refs/heads/main' && github.run_id || github.ref }}-keycloak-build
diff --git a/.github/workflows/preprocessing-nextclade.yml b/.github/workflows/preprocessing-nextclade.yml
index 5297ecaf6..43e5f4367 100644
--- a/.github/workflows/preprocessing-nextclade.yml
+++ b/.github/workflows/preprocessing-nextclade.yml
@@ -12,7 +12,7 @@ on:
 
 env:
   DOCKER_IMAGE_NAME: ghcr.io/loculus-project/preprocessing-nextclade
-  BUILD_ARM: ${{ github.ref == 'refs/heads/main' || github.event.inputs.build_arm }}
+  BUILD_ARM: "true"
 
 concurrency:
   group: ci-${{ github.ref == 'refs/heads/main' && github.run_id || github.ref }}-preprocessing-nextclade
diff --git a/.github/workflows/website.yml b/.github/workflows/website.yml
index a961df002..12e09089c 100644
--- a/.github/workflows/website.yml
+++ b/.github/workflows/website.yml
@@ -12,7 +12,7 @@ on:
 
 env:
   DOCKER_IMAGE_NAME: ghcr.io/loculus-project/website
-  BUILD_ARM: ${{ github.ref == 'refs/heads/main' || github.event.inputs.build_arm }} # When to build for arm as well
+  BUILD_ARM: "true"
 
 concurrency:
   group: ci-${{ github.ref == 'refs/heads/main' && github.run_id || github.ref }}-website