diff --git a/chapter02/scripts/listing_2_10.sh b/chapter02/scripts/listing_2_10.sh
index 8cfe432e..d390097c 100755
--- a/chapter02/scripts/listing_2_10.sh
+++ b/chapter02/scripts/listing_2_10.sh
@@ -12,7 +12,7 @@ docker run \
 -ti \
 -p 8080:8080 \
 -v ${SCRIPT_DIR}/../dags/download_rocket_launches.py:/opt/airflow/dags/download_rocket_launches.py \
---name airflow
+--name airflow \
 --entrypoint=/bin/bash \
 apache/airflow:2.0.0-python3.8 \
 -c '( \
diff --git a/chapter03/dags/01_unscheduled.py b/chapter03/dags/01_unscheduled.py
index fc7b7919..77f32b1f 100644
--- a/chapter03/dags/01_unscheduled.py
+++ b/chapter03/dags/01_unscheduled.py
@@ -1,13 +1,13 @@
-from datetime import datetime
 from pathlib import Path
 
 import pandas as pd
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
 
 dag = DAG(
-    dag_id="01_unscheduled", start_date=datetime(2019, 1, 1), schedule_interval=None
+    dag_id="01_unscheduled", start_date=airflow.utils.dates.days_ago(14), schedule_interval=None
 )
 
 fetch_events = BashOperator(
diff --git a/chapter03/dags/02_daily_schedule.py b/chapter03/dags/02_daily_schedule.py
index 764d08fd..5d12f1c7 100644
--- a/chapter03/dags/02_daily_schedule.py
+++ b/chapter03/dags/02_daily_schedule.py
@@ -1,7 +1,8 @@
-from datetime import datetime
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -9,8 +10,8 @@
 dag = DAG(
     dag_id="02_daily_schedule",
     schedule_interval="@daily",
-    start_date=datetime(2019, 1, 1),
-    end_date=datetime(2019, 1, 5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
 )
 
 fetch_events = BashOperator(
diff --git a/chapter03/dags/03_with_end_date.py b/chapter03/dags/03_with_end_date.py
index 3bc628ef..af283d8e 100644
--- a/chapter03/dags/03_with_end_date.py
+++ b/chapter03/dags/03_with_end_date.py
@@ -1,7 +1,8 @@
-import datetime as dt
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -9,8 +10,8 @@
 dag = DAG(
     dag_id="03_with_end_date",
     schedule_interval="@daily",
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
 )
 
 fetch_events = BashOperator(
diff --git a/chapter03/dags/04_time_delta.py b/chapter03/dags/04_time_delta.py
index c4287771..d25ef20a 100644
--- a/chapter03/dags/04_time_delta.py
+++ b/chapter03/dags/04_time_delta.py
@@ -1,16 +1,17 @@
-import datetime as dt
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
 
 dag = DAG(
     dag_id="04_time_delta",
-    schedule_interval=dt.timedelta(days=3),
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    schedule_interval=timedelta(days=3),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
 )
 
 fetch_events = BashOperator(
diff --git a/chapter03/dags/05_query_with_dates.py b/chapter03/dags/05_query_with_dates.py
index 39ff4022..c84b69cf 100644
--- a/chapter03/dags/05_query_with_dates.py
+++ b/chapter03/dags/05_query_with_dates.py
@@ -1,7 +1,8 @@
-import datetime as dt
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -9,8 +10,8 @@
 dag = DAG(
     dag_id="05_query_with_dates",
     schedule_interval="@daily",
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
 )
 
 fetch_events = BashOperator(
diff --git a/chapter03/dags/06_templated_query.py b/chapter03/dags/06_templated_query.py
index 6aef046f..9da20c9c 100644
--- a/chapter03/dags/06_templated_query.py
+++ b/chapter03/dags/06_templated_query.py
@@ -1,8 +1,9 @@
-import datetime as dt
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
 
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -10,8 +11,8 @@
 dag = DAG(
     dag_id="06_templated_query",
     schedule_interval="@daily",
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
 )
 
 fetch_events = BashOperator(
diff --git a/chapter03/dags/07_templated_query_ds.py b/chapter03/dags/07_templated_query_ds.py
index fc4fce45..7105afc6 100644
--- a/chapter03/dags/07_templated_query_ds.py
+++ b/chapter03/dags/07_templated_query_ds.py
@@ -1,9 +1,9 @@
-import datetime as dt
-from datetime import timedelta
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
 
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -11,8 +11,8 @@
 dag = DAG(
     dag_id="07_templated_query_ds",
     schedule_interval=timedelta(days=3),
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
 )
 
 fetch_events = BashOperator(
diff --git a/chapter03/dags/08_templated_path.py b/chapter03/dags/08_templated_path.py
index 9b382f48..7e05fbb4 100644
--- a/chapter03/dags/08_templated_path.py
+++ b/chapter03/dags/08_templated_path.py
@@ -1,8 +1,9 @@
-import datetime as dt
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
 
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -10,8 +11,8 @@
 dag = DAG(
     dag_id="08_templated_path",
     schedule_interval="@daily",
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
 )
 
 fetch_events = BashOperator(
diff --git a/chapter03/dags/09_no_catchup.py b/chapter03/dags/09_no_catchup.py
index d86c8d92..f45586de 100644
--- a/chapter03/dags/09_no_catchup.py
+++ b/chapter03/dags/09_no_catchup.py
@@ -1,8 +1,9 @@
-import datetime as dt
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
 
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -10,8 +11,8 @@
 dag = DAG(
     dag_id="09_no_catchup",
     schedule_interval="@daily",
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
     catchup=False,
 )
 
diff --git a/chapter03/dags/10_non_atomic_send.py b/chapter03/dags/10_non_atomic_send.py
index 0ffb08bc..9505ab45 100644
--- a/chapter03/dags/10_non_atomic_send.py
+++ b/chapter03/dags/10_non_atomic_send.py
@@ -1,8 +1,9 @@
-import datetime as dt
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
 
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -10,8 +11,8 @@
 dag = DAG(
     dag_id="10_non_atomic_send",
     schedule_interval="@daily",
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
     catchup=True,
 )
 
diff --git a/chapter03/dags/11_atomic_send.py b/chapter03/dags/11_atomic_send.py
index ce1f16a4..e77ffcb7 100644
--- a/chapter03/dags/11_atomic_send.py
+++ b/chapter03/dags/11_atomic_send.py
@@ -1,8 +1,9 @@
-import datetime as dt
+from datetime import datetime, timedelta
 from pathlib import Path
 
 import pandas as pd
 
+import airflow
 from airflow import DAG
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
@@ -10,8 +11,8 @@
 dag = DAG(
     dag_id="11_atomic_send",
     schedule_interval="@daily",
-    start_date=dt.datetime(year=2019, month=1, day=1),
-    end_date=dt.datetime(year=2019, month=1, day=5),
+    start_date=airflow.utils.dates.days_ago(14),
+    end_date=datetime.now() + timedelta(days=14),
     catchup=True,
 )
 
diff --git a/chapter03/docker/events-api/app.py b/chapter03/docker/events-api/app.py
index aad766c4..e6ba7eb3 100644
--- a/chapter03/docker/events-api/app.py
+++ b/chapter03/docker/events-api/app.py
@@ -48,7 +48,7 @@ def _generate_events_for_day(date):
 
 
 app = Flask(__name__)
-app.config["events"] = _generate_events(end_date=date(year=2019, month=1, day=5))
+app.config["events"] = _generate_events(end_date=date.today())
 
 
 @app.route("/events")
diff --git a/chapter03/docker/events-api/requirements.txt b/chapter03/docker/events-api/requirements.txt
index eb024fed..e82b29bd 100644
--- a/chapter03/docker/events-api/requirements.txt
+++ b/chapter03/docker/events-api/requirements.txt
@@ -1,4 +1,3 @@
-click==7.1.2
 faker==4.14.0
-flask==1.1.2
+flask==2.2.2
 pandas==1.1.3