diff --git a/pom.xml b/pom.xml
index bcb0912..f201899 100644
--- a/pom.xml
+++ b/pom.xml
@@ -18,11 +18,11 @@
 		<maven.compiler.release>8</maven.compiler.release>
 
 		<!-- dependencies -->
-		<gson.version>2.8.9</gson.version>
-		<guava.version>32.0.0-jre</guava.version>
-		<siv-mode.version>1.4.4</siv-mode.version>
+		<gson.version>2.10.1</gson.version>
+		<guava.version>32.1.3-jre</guava.version>
+		<siv-mode.version>1.5.0</siv-mode.version>
 		<bouncycastle.version>1.70</bouncycastle.version>
-		<slf4j.version>1.7.35</slf4j.version>
+		<slf4j.version>2.0.9</slf4j.version>
 
 		<!-- test dependencies -->
 		<junit.jupiter.version>5.8.2</junit.jupiter.version>