diff --git a/.drone.jsonnet b/.drone.jsonnet
index d12a2ad..dc79649 100644
--- a/.drone.jsonnet
+++ b/.drone.jsonnet
@@ -65,7 +65,7 @@ local PipelineBuildContainer(arch='amd64') = {
         username: { from_secret: 'docker_username' },
         password: { from_secret: 'docker_password' },
         build_args: [
-          'BUILD_DATE=${DRONE_DOCKER_BUILD_TIME}',
+          'BUILD_DATE=$${DRONE_DOCKER_BUILD_TIME}',
         ],
       },
       when: {
diff --git a/.drone.yml b/.drone.yml
index 43604ca..41019db 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -58,7 +58,7 @@ steps:
   image: thegeeklab/drone-docker-buildx
   settings:
     build_args:
-    - BUILD_DATE=${DRONE_DOCKER_BUILD_TIME}
+    - BUILD_DATE=$${DRONE_DOCKER_BUILD_TIME}
     dockerfile: Dockerfile.amd64
     password:
       from_secret: docker_password
@@ -138,7 +138,7 @@ steps:
   image: thegeeklab/drone-docker-buildx
   settings:
     build_args:
-    - BUILD_DATE=${DRONE_DOCKER_BUILD_TIME}
+    - BUILD_DATE=$${DRONE_DOCKER_BUILD_TIME}
     dockerfile: Dockerfile.arm64
     password:
       from_secret: docker_password
@@ -218,7 +218,7 @@ steps:
   image: thegeeklab/drone-docker-buildx
   settings:
     build_args:
-    - BUILD_DATE=${DRONE_DOCKER_BUILD_TIME}
+    - BUILD_DATE=$${DRONE_DOCKER_BUILD_TIME}
     dockerfile: Dockerfile.arm
     password:
       from_secret: docker_password
@@ -352,6 +352,6 @@ depends_on:
 
 ---
 kind: signature
-hmac: a29790fab71a1ebb5dd6904c898ccd4e3137b40f0014b763eb22fc6ede074547
+hmac: c61dd5d460978c3cb776064613c2bd8fcb60b7161d37d4c388859b2a7cd38d8e
 
 ...