diff --git a/multi-io-samples/ticktock/multi-input-log-kafka/pom.xml b/multi-io-samples/ticktock/multi-input-log-kafka/pom.xml
index 6e0f1d2..53bd82a 100644
--- a/multi-io-samples/ticktock/multi-input-log-kafka/pom.xml
+++ b/multi-io-samples/ticktock/multi-input-log-kafka/pom.xml
@@ -138,6 +138,11 @@
 	</dependencies>
 
 	<repositories>
+		<repository>
+			<id>maven-central</id>
+			<name>Maven Central</name>
+			<url>https://repo.maven.apache.org/maven2</url>
+		</repository>
 		<repository>
 			<snapshots>
 				<enabled>true</enabled>
diff --git a/multi-io-samples/ticktock/multi-input-log-rabbit/pom.xml b/multi-io-samples/ticktock/multi-input-log-rabbit/pom.xml
index 299fb88..7c89aac 100644
--- a/multi-io-samples/ticktock/multi-input-log-rabbit/pom.xml
+++ b/multi-io-samples/ticktock/multi-input-log-rabbit/pom.xml
@@ -138,6 +138,11 @@
 	</dependencies>
 
 	<repositories>
+		<repository>
+			<id>maven-central</id>
+			<name>Maven Central</name>
+			<url>https://repo.maven.apache.org/maven2</url>
+		</repository>
 		<repository>
 			<snapshots>
 				<enabled>true</enabled>
diff --git a/multi-io-samples/ticktock/multi-output-time-kafka/pom.xml b/multi-io-samples/ticktock/multi-output-time-kafka/pom.xml
index 85bdacc..6640ed4 100644
--- a/multi-io-samples/ticktock/multi-output-time-kafka/pom.xml
+++ b/multi-io-samples/ticktock/multi-output-time-kafka/pom.xml
@@ -143,6 +143,11 @@
 	</dependencies>
 
 	<repositories>
+		<repository>
+			<id>maven-central</id>
+			<name>Maven Central</name>
+			<url>https://repo.maven.apache.org/maven2</url>
+		</repository>
 		<repository>
 			<snapshots>
 				<enabled>true</enabled>
diff --git a/multi-io-samples/ticktock/multi-output-time-rabbit/pom.xml b/multi-io-samples/ticktock/multi-output-time-rabbit/pom.xml
index 64c0fd5..4c5df33 100644
--- a/multi-io-samples/ticktock/multi-output-time-rabbit/pom.xml
+++ b/multi-io-samples/ticktock/multi-output-time-rabbit/pom.xml
@@ -143,6 +143,11 @@
 	</dependencies>
 
 	<repositories>
+		<repository>
+			<id>maven-central</id>
+			<name>Maven Central</name>
+			<url>https://repo.maven.apache.org/maven2</url>
+		</repository>
 		<repository>
 			<snapshots>
 				<enabled>true</enabled>