diff --git a/testcontainers-junit4-mock-demo/pom.xml b/testcontainers-junit4-mock-demo/pom.xml
index 461b0ad..9a979c3 100644
--- a/testcontainers-junit4-mock-demo/pom.xml
+++ b/testcontainers-junit4-mock-demo/pom.xml
@@ -39,7 +39,7 @@
 		<dependency>
 			<groupId>org.testcontainers</groupId>
 			<artifactId>testcontainers</artifactId>
-			<version>1.21.0</version>
+			<version>1.21.3</version>
 			<exclusions>
 				<!-- No JUnit 4 -->
 				<exclusion>
diff --git a/testcontainers-junit4-mock/pom.xml b/testcontainers-junit4-mock/pom.xml
index df737ff..b24418a 100644
--- a/testcontainers-junit4-mock/pom.xml
+++ b/testcontainers-junit4-mock/pom.xml
@@ -53,7 +53,7 @@
 		<dependency>
 			<groupId>org.testcontainers</groupId>
 			<artifactId>testcontainers</artifactId>
-			<version>1.21.0</version>
+			<version>1.21.3</version>
 			<scope>test</scope>
 			<exclusions>
 				<!-- No JUnit 4 -->