diff --git a/src/development/postgraphile/compose.yaml b/src/development/postgraphile/compose.yaml
index b8acd655..4d5b270b 100644
--- a/src/development/postgraphile/compose.yaml
+++ b/src/development/postgraphile/compose.yaml
@@ -46,7 +46,7 @@ services:
         target: /run/environment-variables/POSTGRAPHILE_OWNER_CONNECTION
     volumes:
       - ../../../../postgraphile/:/srv/app/ # dargstack:dev-only
-      - ./configurations/jwtRS256.key.pub:/run/environment-variables/POSTGRAPHILE_JWT_PUBLIC_KEY:ro
+      - ./configurations/jwtES256.key.pub:/run/environment-variables/POSTGRAPHILE_JWT_PUBLIC_KEY:ro
       - pnpm-data:/srv/.pnpm-store/ # dargstack:dev-only
       - postgraphile-data:/srv/app/node_modules # dargstack:dev-only
 volumes:
@@ -60,6 +60,7 @@ x-dargstack:
       template: postgres://{{secret:postgres-role-service-postgraphile-username}}:{{secret:postgres-role-service-postgraphile-password}}@postgres:5432/{{secret:postgres-db}}
     postgraphile-jwt-secret:
       type: private_key
+      key_type: ecdsa
     postgraphile-owner-connection:
       type: template
       template: postgres://{{secret:postgres-user}}:{{secret:postgres-password}}@postgres:5432/{{secret:postgres-db}}
diff --git a/src/development/postgraphile/configurations/jwtES256.key.pub b/src/development/postgraphile/configurations/jwtES256.key.pub
new file mode 100644
index 00000000..e9b2a5e8
--- /dev/null
+++ b/src/development/postgraphile/configurations/jwtES256.key.pub
@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEgIYyEMm+hZzEnXhJLGUx9lwr3cKs
+W2uJ+zLvei380CrUEPARnWQNR/V0usS0EFypTQllniuCpbLG6un87kxh6w==
+-----END PUBLIC KEY-----
diff --git a/src/development/postgraphile/configurations/jwtRS256.key.pub b/src/development/postgraphile/configurations/jwtRS256.key.pub
deleted file mode 100644
index 65de2425..00000000
--- a/src/development/postgraphile/configurations/jwtRS256.key.pub
+++ /dev/null
@@ -1,14 +0,0 @@
------BEGIN PUBLIC KEY-----
-MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAtBuHX2uH5GviLbocSUBK
-aRE4iKEjjEoB1eh7VQdBoKi1Wd+DNUilVyCtq0ootPSDR/8yOTa8W396Wu1xm07+
-xDAyFzsilIppu8DNcJo28Gb3PZCm4nXmITPkknVSKf80hosgauoe7itqDxgMASYT
-U8CgBH8zXPaowhqzjz0M/T9RqD1mRzMn3NEprDnaVAsh11r3DSandHjsnlgKCf1d
-lh4ixCZ6zUhtb0sT6GxuJaGjNVevLbPLuugMTu3d484FwbND+AmpAjIgdnX5lJQn
-eT7HxgnaiwLDazSwLM0jmiyEvnrmSPJZ2sgp87XS0VTVwMYk3M3RCy/3RiamJG5v
-7qZuVr4L87cXWvLHCwV5dGaPu0Dc3/75lcKcWy+BtBQUI+n+om1EitLtUo+lxE9a
-SyG6bhYQNu+XMRwY768TrzrvBwYt5JxoO9y3ybIFzoi/mufkp2NY7XB7CHfMcrn3
-XzCBbXJwt0Zlu2K1R8FPVN0SlsjtOVQun1al9cjC808hihjpiiGpKURoaFsxkh4B
-8n2Qli/fl5BQVAPClmFbsvToSzy+ENEDpXc53eve5Dhzx5SB/qe0DwlljDdc2W8n
-hozYHaOtnLnhG/TU9mmOliw5jmsHb5m1OMdBXMEhrGv4hkHJNg9+hCSJDzvbFRkN
-Y95lZj/fbtFrSHR5WwdsgI8CAwEAAQ==
------END PUBLIC KEY-----
diff --git a/src/development/reccoom/compose.yaml b/src/development/reccoom/compose.yaml
index 97a254e5..f476237a 100644
--- a/src/development/reccoom/compose.yaml
+++ b/src/development/reccoom/compose.yaml
@@ -33,7 +33,7 @@ services:
       - reccoom-openai-api-key
     volumes:
       - ../../../../reccoom/:/srv/app/ # dargstack:dev-only
-      - ../postgraphile/configurations/jwtRS256.key.pub:/run/configurations/jwtRS256.key.pub:ro
+      - ../postgraphile/configurations/jwtES256.key.pub:/run/configurations/jwtES256.key.pub:ro
   reccoom_postgres:
     # You can access reccoom's database via `adminer`.
     deploy:
diff --git a/src/development/vibetype/compose.yaml b/src/development/vibetype/compose.yaml
index a2c12f8f..94c380c0 100644
--- a/src/development/vibetype/compose.yaml
+++ b/src/development/vibetype/compose.yaml
@@ -72,7 +72,7 @@ services:
       - ../../../artifacts/certificates/:/srv/certificates/ # dargstack:dev-only
       - ../../../../vibetype/:/srv/app/ # dargstack:dev-only
       - vibetype-data:/srv/app/node_modules # dargstack:dev-only
-      - ../postgraphile/configurations/jwtRS256.key.pub:/run/environment-variables/NUXT_PUBLIC_VIO_AUTH_JWT_PUBLIC_KEY:ro
+      - ../postgraphile/configurations/jwtES256.key.pub:/run/environment-variables/NUXT_PUBLIC_VIO_AUTH_JWT_PUBLIC_KEY:ro
 volumes:
   vibetype-data:
     # The frontend's data.
diff --git a/src/production/vibetype/compose.yaml b/src/production/vibetype/compose.yaml
index 72d52cd1..164fe583 100644
--- a/src/production/vibetype/compose.yaml
+++ b/src/production/vibetype/compose.yaml
@@ -48,6 +48,6 @@ services:
   #     - source: postgres-role-service-vibetype-username
   #       target: /run/environment-variables/PGUSER
   #   volumes:
-  #     - ./configurations/postgraphile/jwtRS256.key.pub:/run/environment-variables/NUXT_PUBLIC_VIO_AUTH_JWT_PUBLIC_KEY:ro
+  #     - ./configurations/postgraphile/jwtES256.key.pub:/run/environment-variables/NUXT_PUBLIC_VIO_AUTH_JWT_PUBLIC_KEY:ro
 volumes:
   vibetype_data: (( prune ))