diff --git a/pom.xml b/pom.xml
index 59072b6..d3531b8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,10 +19,10 @@
 		<project.build.outputTimestamp>2026-01-28T08:00:00Z</project.build.outputTimestamp>
 
 		<!-- dependencies -->
-		<gson.version>2.12.1</gson.version>
-		<guava.version>33.4.0-jre</guava.version>
+		<gson.version>2.13.2</gson.version>
+		<guava.version>33.5.0-jre</guava.version>
 		<siv-mode.version>1.6.1</siv-mode.version>
-		<bouncycastle.version>1.80</bouncycastle.version>
+		<bouncycastle.version>1.83</bouncycastle.version>
 		<slf4j.version>2.0.17</slf4j.version>
 
 		<!-- test dependencies -->