diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ec632e..15ebadb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.8.4] - 2025-01-13
 ### Changed
 
 - Bump chart version (`0.3.1`)
@@ -15,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Helm chart error when using `serviceMonitor.name` (formatting error)
 - Remove default `RUNDECK_TOKEN` env variable (default value overrules value from secret if set)
+- Issue [#108](https://github.com/phsmith/rundeck_exporter/issues/108), fix Prometheus duplicate metrics error report when `rundeck.projects.executions.cache` option is enabled.
 
 ## [2.8.3] - 2024-10-16
 ### Fixed
@@ -322,7 +324,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Initial release
 
-[unreleased]: https://github.com/phsmith/rundeck_exporter/compare/v2.8.3...HEAD
+[unreleased]: https://github.com/phsmith/rundeck_exporter/compare/v2.8.4...HEAD
+[2.8.4]: https://github.com/phsmith/rundeck_exporter/compare/v2.8.3...v2.8.4
 [2.8.3]: https://github.com/phsmith/rundeck_exporter/compare/v2.8.2...v2.8.3
 [2.8.2]: https://github.com/phsmith/rundeck_exporter/compare/v2.8.1...v2.8.2
 [2.8.1]: https://github.com/phsmith/rundeck_exporter/compare/v2.8.0...v2.8.1
diff --git a/requirements.txt b/requirements.txt
index 8f69eda..a95bcc1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-cachetools==5.3.3
-prometheus-client==0.20.0
+cachetools==5.5.0
+prometheus-client==0.21.1
 requests==2.32.3
diff --git a/rundeck_exporter.py b/rundeck_exporter.py
index 1b4c490..d624b71 100755
--- a/rundeck_exporter.py
+++ b/rundeck_exporter.py
@@ -27,7 +27,7 @@
 __author__ = 'Phillipe Smith'
 __author_email__ = 'phsmithcc@gmail.com'
 __app__ = 'rundeck_exporter'
-__version__ = '2.8.3'
+__version__ = '2.8.4'
 
 # Disable InsecureRequestWarning
 requests.urllib3.disable_warnings()
@@ -527,6 +527,7 @@ def collect(self):
 
             with ThreadPoolExecutor(thread_name_prefix='project_executions', max_workers=self.args.threadpool_max_workers) as project_executions_threadpool:
                 project_execution_records = project_executions_threadpool.map(self.get_project_executions, projects)
+                timestamp = datetime.now().timestamp()
 
                 default_labels = self.default_labels + [
                     'project_name',
@@ -565,15 +566,16 @@ def collect(self):
                 for project_execution_record_group, project_executions_total in project_execution_records:
                     project_executions_total_metrics.add_metric(
                         self.default_labels_values + [project_executions_total['project']],
-                        project_executions_total['total_executions']
+                        project_executions_total['total_executions'],
+                        timestamp=timestamp
                     )
                     for project_execution_record in project_execution_record_group:
                         if project_execution_record.execution_type == RundeckProjectExecution.START:
-                            project_start_metrics.add_metric(project_execution_record.tags, project_execution_record.value)
+                            project_start_metrics.add_metric(project_execution_record.tags, project_execution_record.value, timestamp=timestamp)
                         elif project_execution_record.execution_type == RundeckProjectExecution.DURATION:
-                            project_duration_metrics.add_metric(project_execution_record.tags, project_execution_record.value)
+                            project_duration_metrics.add_metric(project_execution_record.tags, project_execution_record.value, timestamp=timestamp)
                         elif project_execution_record.execution_type == RundeckProjectExecution.STATUS:
-                            project_metrics.add_metric(project_execution_record.tags, project_execution_record.value)
+                            project_metrics.add_metric(project_execution_record.tags, project_execution_record.value, timestamp=timestamp)
 
                 yield project_start_metrics
                 yield project_duration_metrics