diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0c48063..76fc746 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,7 +16,7 @@ jobs:
       packages: write
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-java@v3
+      - uses: actions/setup-java@v4
         with:
           java-version: 17
           distribution: temurin
diff --git a/.github/workflows/snyk.yml b/.github/workflows/snyk.yml
deleted file mode 100644
index eb9e88e..0000000
--- a/.github/workflows/snyk.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-name: Snyk
-
-on:
-  schedule:
-    - cron:  "0 13 * * 1"
-
-jobs:
-  Snyk:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Run Snyk to check for vulnerabilities
-        uses: snyk/actions/gradle-jdk17@master
-        env:
-          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
-          ORG_GRADLE_PROJECT_githubPassword: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          args: --org=helsearbeidsgiver --project-name=helsearbeidsgiver-utils
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 096ff3c..49fcb6e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-java@v3
+      - uses: actions/setup-java@v4
         with:
           java-version: 17
           distribution: temurin
diff --git a/gradle.properties b/gradle.properties
index d291f70..95248eb 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,13 +1,13 @@
 kotlin.code.style=official
 
 # Plugin versions
-kotlinVersion=1.9.10
+kotlinVersion=1.9.21
 ktlintVersion=11.6.0
 
 # Dependency versions
-kotestVersion=5.7.2
+kotestVersion=5.8.0
 kotlinCoroutinesVersion=1.7.3
-kotlinxSerializationVersion=1.6.0
-logbackVersion=1.4.11
-mockkVersion=1.13.7
+kotlinxSerializationVersion=1.6.2
+logbackVersion=1.4.14
+mockkVersion=1.13.8
 slf4jVersion=2.0.9