diff --git a/docker/Dockerfile.ubuntu b/docker/Dockerfile.ubuntu
index 7d480388..a294d2c0 100644
--- a/docker/Dockerfile.ubuntu
+++ b/docker/Dockerfile.ubuntu
@@ -45,7 +45,8 @@ else \
     pip cache purge; \
 fi
 
-RUN echo "cache bust $(date +%Y%m%d%H%M%S)" && true
+ARG CUR_TIME={cur_time}
+RUN echo $CUR_TIME
 
 RUN sh /tmp/install.sh {version_args} && \
     curl -fsSL https://ollama.com/install.sh | sh && \
diff --git a/docker/build_image.py b/docker/build_image.py
index d614f521..5f253eae 100644
--- a/docker/build_image.py
+++ b/docker/build_image.py
@@ -160,6 +160,7 @@ class CPUImageBuilder(Builder):
             content = content.replace('{extra_content}', extra_content)
             content = content.replace('{meta_file}', meta_file)
             content = content.replace('{version_args}', version_args)
+            content = content.replace('{cur_time}', formatted_time)
             content = content.replace('{install_ms_deps}', 'True')
             content = content.replace('{torch_version}',
                                       self.args.torch_version)
@@ -222,6 +223,7 @@ RUN pip install tf-keras==2.16.0 --no-dependencies && \
             content = content.replace('{extra_content}', extra_content)
             content = content.replace('{meta_file}', meta_file)
             content = content.replace('{version_args}', version_args)
+            content = content.replace('{cur_time}', formatted_time)
             content = content.replace('{install_ms_deps}', 'True')
             content = content.replace('{torch_version}',
                                       self.args.torch_version)
@@ -296,6 +298,7 @@ class LLMImageBuilder(Builder):
             content = content.replace('{extra_content}', extra_content)
             content = content.replace('{meta_file}', meta_file)
             content = content.replace('{version_args}', version_args)
+            content = content.replace('{cur_time}', formatted_time)
             content = content.replace('{install_ms_deps}', 'False')
             content = content.replace('{torch_version}',
                                       self.args.torch_version)