diff --git a/pom.xml b/pom.xml
index c5de98831..ec8706c23 100644
--- a/pom.xml
+++ b/pom.xml
@@ -60,7 +60,7 @@
       <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
-        <version>4.13</version>
+        <version>4.13.1</version>
         <scope>test</scope>
       </dependency>
     </dependencies>
diff --git a/pubsublite-beam-io/pom.xml b/pubsublite-beam-io/pom.xml
index 8fe5ff6e3..f23297877 100644
--- a/pubsublite-beam-io/pom.xml
+++ b/pubsublite-beam-io/pom.xml
@@ -86,7 +86,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.13</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index a8668ea63..5ef8221f7 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -57,7 +57,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.13</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index 47290e9ef..ac72f251b 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -59,7 +59,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.13</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>