diff --git a/build.sbt b/build.sbt
index 45e0288..c2ae7ec 100644
--- a/build.sbt
+++ b/build.sbt
@@ -8,22 +8,22 @@ libraryDependencies ++= Seq(
  "org.slf4j" % "slf4j-api" % "1.7.32",
  "org.slf4j" % "slf4j-simple" % "1.7.32",
  "com.itextpdf" % "itextpdf" % "5.5.13.2" ,
- "org.bouncycastle" % "bcprov-jdk15on" % "1.47" ,
- "org.bouncycastle" % "bcmail-jdk15on" % "1.47" ,
- "org.apache.poi" % "poi" % "3.15" ,
+ "org.bouncycastle" % "bcprov-jdk15on" % "1.69" ,
+ "org.bouncycastle" % "bcmail-jdk15on" % "1.69" ,
+ "org.apache.poi" % "poi" % "5.0.0" ,
 
- "com.fasterxml.jackson.module" %% "jackson-module-scala" % "2.13.0",
+ "com.fasterxml.jackson.module" %% "jackson-module-scala" % "2.13.1",
 
- "net.sourceforge.htmlunit" % "htmlunit" % "2.53.0" ,
+ "net.sourceforge.htmlunit" % "htmlunit" % "2.56.0" ,
 
- "org.specs2" %% "specs2-core" % "4.13.0" % "test" ,
- "org.specs2" %% "specs2-junit" % "4.13.0" % "test" ,
- "org.specs2" %% "specs2-matcher-extra" % "4.13.0" % "test" ,
- "org.specs2" %% "specs2-mock" % "4.13.0" % "test" ,
- "org.specs2" %% "specs2-scalacheck" % "4.13.0" % "test"
+ "org.specs2" %% "specs2-core" % "4.13.1" % "test" ,
+ "org.specs2" %% "specs2-junit" % "4.13.1" % "test" ,
+ "org.specs2" %% "specs2-matcher-extra" % "4.13.1" % "test" ,
+ "org.specs2" %% "specs2-mock" % "4.13.1" % "test" ,
+ "org.specs2" %% "specs2-scalacheck" % "4.13.1" % "test"
 )
 
-assemblyMergeStrategy in assembly := {
+assembly / assemblyMergeStrategy := {
  case PathList("META-INF", _*) => MergeStrategy.discard
  case _ => MergeStrategy.first
 }
diff --git a/project/build.properties b/project/build.properties
index dbae93b..3161d21 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.4.9
+sbt.version=1.6.1