diff --git a/examples/bankaccount-jgiven-junit4/pom.xml b/examples/bankaccount-jgiven-junit4/pom.xml
index d4bcbdb..0d062ca 100644
--- a/examples/bankaccount-jgiven-junit4/pom.xml
+++ b/examples/bankaccount-jgiven-junit4/pom.xml
@@ -38,7 +38,7 @@
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
-      <version>1.7.33</version>
+      <version>1.7.35</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/examples/bankaccount-jgiven-junit5/pom.xml b/examples/bankaccount-jgiven-junit5/pom.xml
index 2a19779..d7d78c8 100644
--- a/examples/bankaccount-jgiven-junit5/pom.xml
+++ b/examples/bankaccount-jgiven-junit5/pom.xml
@@ -40,7 +40,7 @@
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
-      <version>1.7.33</version>
+      <version>1.7.35</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/extension/upcaster-test-core/pom.xml b/extension/upcaster-test-core/pom.xml
index 3d53e4f..7bca438 100644
--- a/extension/upcaster-test-core/pom.xml
+++ b/extension/upcaster-test-core/pom.xml
@@ -70,7 +70,7 @@
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
-      <version>1.7.33</version>
+      <version>1.7.35</version>
     </dependency>