diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e44dfb3..097c501 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,7 +35,7 @@ jobs:
     timeout-minutes: 60
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -45,7 +45,7 @@ jobs:
       - name: Setup Java (temurin@17)
         id: setup-java-temurin-17
         if: matrix.java == 'temurin@17'
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: 17
@@ -91,7 +91,7 @@ jobs:
 
       - name: Upload target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-${{ matrix.scala }}-${{ matrix.project }}
           path: targets.tar
@@ -107,7 +107,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -117,7 +117,7 @@ jobs:
       - name: Setup Java (temurin@17)
         id: setup-java-temurin-17
         if: matrix.java == 'temurin@17'
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: 17
@@ -128,7 +128,7 @@ jobs:
         run: sbt +update
 
       - name: Download target directories (2.13, rootJS)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootJS
 
@@ -138,7 +138,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.13, rootJVM)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootJVM
 
@@ -148,7 +148,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.13, rootNative)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootNative
 
@@ -158,7 +158,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (3, rootJS)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootJS
 
@@ -168,7 +168,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (3, rootJVM)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootJVM
 
@@ -178,7 +178,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (3, rootNative)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootNative
 
@@ -221,7 +221,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -231,7 +231,7 @@ jobs:
       - name: Setup Java (temurin@17)
         id: setup-java-temurin-17
         if: matrix.java == 'temurin@17'
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: 17
@@ -256,7 +256,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -266,7 +266,7 @@ jobs:
       - name: Setup Java (temurin@17)
         id: setup-java-temurin-17
         if: matrix.java == 'temurin@17'
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: 17
diff --git a/build.sbt b/build.sbt
index 9b41f3d..7ff4e2c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,7 +4,6 @@ import laika.config.*
 ThisBuild / tlBaseVersion := "0.0"
 ThisBuild / startYear     := Some(2024)
 ThisBuild / licenses      := Seq(License.Apache2)
-ThisBuild / tlJdkRelease  := Some(11)
 
 ThisBuild / developers := List(
   tlGitHubDev("ChristopherDavenport", "Christopher Davenport"),
@@ -15,7 +14,7 @@ ThisBuild / developers := List(
 ThisBuild / tlSitePublishBranch        := Some("main")
 ThisBuild / githubWorkflowJavaVersions := Seq(JavaSpec.temurin("17"))
 
-ThisBuild / crossScalaVersions := Seq("2.13.15", "3.3.4")
+ThisBuild / crossScalaVersions := Seq("2.13.18", "3.3.7")
 
 lazy val root = tlCrossRootProject.aggregate(catscript, examples)
 
@@ -25,21 +24,18 @@ lazy val catscript = crossProject(JVMPlatform, JSPlatform, NativePlatform)
   .settings(
     name := "catscript",
     libraryDependencies ++= List(
-      "org.typelevel" %% "cats-core"      % "2.12.0",
-      "org.typelevel" %% "alleycats-core" % "2.12.0",
-      "org.typelevel" %% "cats-effect"    % "3.5.4",
-      "co.fs2"        %% "fs2-core"       % "3.10.2",
-      "co.fs2"        %% "fs2-io"         % "3.10.2",
-      "co.fs2"        %% "fs2-scodec"     % "3.10.2",
-      "org.scodec"    %% "scodec-bits"    % "1.2.0",
+      "org.typelevel" %% "cats-core"   % "2.13.0",
+      "org.typelevel" %% "cats-effect" % "3.7.0",
+      "co.fs2"        %% "fs2-core"    % "3.13.0",
+      "co.fs2"        %% "fs2-io"      % "3.13.0",
+      "org.scodec"    %% "scodec-bits" % "1.2.4",
       "org.scodec" %% "scodec-core" % (if (scalaVersion.value.startsWith("2."))
                                          "1.11.10"
-                                       else "2.3.0"),
+                                       else "2.3.3"),
       // Testing
-      "com.disneystreaming" %% "weaver-cats"       % "0.8.4" % Test,
-      "com.disneystreaming" %% "weaver-scalacheck" % "0.8.4" % Test
-    ),
-    mimaPreviousArtifacts := Set()
+      "org.typelevel" %% "weaver-cats"       % "0.12.0" % Test,
+      "org.typelevel" %% "weaver-scalacheck" % "0.12.0" % Test
+    )
   )
 
 lazy val examples = project
@@ -56,6 +52,7 @@ lazy val docs = project
   .enablePlugins(TypelevelSitePlugin)
   .dependsOn(catscript.jvm)
   .settings(
+    libraryDependencies += "co.fs2" %% "fs2-scodec" % "3.13.0",
     laikaConfig := LaikaConfig.defaults
       .withConfigValue(
         Selections(
diff --git a/project/build.properties b/project/build.properties
index 61c9b1c..df061f4 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.11.1
+sbt.version=1.12.9
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 14b8009..22773d6 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,5 +1,5 @@
-val sbtTlVersion         = "0.8.0"
+val sbtTlVersion         = "0.8.5"
 addSbtPlugin("org.typelevel"    % "sbt-typelevel"      % sbtTlVersion)
 addSbtPlugin("org.typelevel"    % "sbt-typelevel-site" % sbtTlVersion)
-addSbtPlugin("org.scala-js"     % "sbt-scalajs"        % "1.16.0")
-addSbtPlugin("org.scala-native" % "sbt-scala-native"   % "0.4.17")
+addSbtPlugin("org.scala-js"     % "sbt-scalajs"        % "1.21.0")
+addSbtPlugin("org.scala-native" % "sbt-scala-native"   % "0.5.11")