diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 89efbe16..98384257 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -44,7 +44,7 @@ jobs:
     timeout-minutes: 60
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -129,7 +129,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -286,7 +286,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -334,7 +334,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (fast)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Java (temurin@11)
         id: setup-java-temurin-11
@@ -359,7 +359,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 9b3df907..378576a8 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -2,6 +2,6 @@ addSbtPlugin("org.scala-js"       % "sbt-scalajs"                   % "1.20.1")
 addSbtPlugin("org.scala-native"   % "sbt-scala-native"              % "0.5.9")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh"                       % "0.4.8")
-val sbtTypelevelVersion = "0.8.3"
+val sbtTypelevelVersion = "0.8.4"
 addSbtPlugin("org.typelevel" % "sbt-typelevel"      % sbtTypelevelVersion)
 addSbtPlugin("org.typelevel" % "sbt-typelevel-site" % sbtTypelevelVersion)