diff --git a/models/silver/stats/silver_stats__core_metrics_block_hourly.sql b/models/silver/stats/silver_stats__core_metrics_block_hourly.sql
index c57089b..15536ee 100644
--- a/models/silver/stats/silver_stats__core_metrics_block_hourly.sql
+++ b/models/silver/stats/silver_stats__core_metrics_block_hourly.sql
@@ -54,7 +54,7 @@ WHERE
 AND DATE_TRUNC(
     'hour',
     block_timestamp
-) >= {{ min_block_timestamp_hour }}
+) >= '{{ min_block_timestamp_hour }}'
 {% endif %}
 GROUP BY
     1
diff --git a/models/silver/stats/silver_stats__core_metrics_hourly.sql b/models/silver/stats/silver_stats__core_metrics_hourly.sql
index 2ae4d3a..2933248 100644
--- a/models/silver/stats/silver_stats__core_metrics_hourly.sql
+++ b/models/silver/stats/silver_stats__core_metrics_hourly.sql
@@ -52,7 +52,7 @@ WITH fees AS (
 AND DATE_TRUNC(
     'hour',
     block_timestamp
-) >= {{ min_block_timestamp_hour }}
+) >= '{{ min_block_timestamp_hour }}'
 {% endif %}
 GROUP BY
     1
@@ -98,7 +98,7 @@ transactions AS (
 AND DATE_TRUNC(
     'hour',
     block_timestamp
-) >= {{ min_block_timestamp_hour }}
+) >= '{{ min_block_timestamp_hour }}'
 {% endif %}
 GROUP BY
     1