diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 66d4b474b..9605bb4a8 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -17,18 +17,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
       - name: Setup Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: "zulu"
           java-version: "17"
 
       - name: Setup Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
 
       - name: Install and configure Poetry
         uses: snok/install-poetry@v1
@@ -62,7 +62,7 @@ jobs:
           ./build/sbt -Dspark.version=4.0.0 -Ddocs.mode=production "docs/laikaHTML"
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v6
         with:
           path: ./docs/target/docs/site
 
diff --git a/.github/workflows/python-ci.yml b/.github/workflows/python-ci.yml
index 62aa5befb..f1a827070 100644
--- a/.github/workflows/python-ci.yml
+++ b/.github/workflows/python-ci.yml
@@ -6,13 +6,17 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - spark-version: 3.5.6
+          - spark-version: 3.5.7
             scala-version: 2.12
             python-version: "3.10"
             java-version: 11
           - spark-version: 4.0.1
             scala-version: 2.13
-            python-version: 3.12
+            python-version: "3.12"
+            java-version: 17
+          - spark-version: 4.1.0
+            scala-version: 2.13
+            python-version: "3.13"
             java-version: 17
     runs-on: ubuntu-latest
     env:
@@ -23,17 +27,17 @@ jobs:
       SCALA_VERSION: ${{ matrix.scala-version }}
       PIP_REQUESTS_TIMEOUT: 100
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-java@v4
+    - uses: actions/checkout@v6
+    - uses: actions/setup-java@v5
       with:
         distribution: "zulu"
         java-version: "${{ matrix.java-version }}"
-    - uses: actions/cache@v4
+    - uses: actions/cache@v5
       with:
         path: |
           ~/.ivy2/cache
         key: sbt-ivy-cache-spark-${{ matrix.spark-version}}-scala-${{ matrix.scala-version }}
-    - uses: actions/setup-python@v4
+    - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install and configure Poetry
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 660096abc..41089bdf5 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -19,16 +19,16 @@ jobs:
       id-token: write
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up JDK
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           java-version: '11'
           distribution: 'zulu'
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.10'
 
diff --git a/.github/workflows/scala-ci.yml b/.github/workflows/scala-ci.yml
index 88464fff8..378963eb4 100644
--- a/.github/workflows/scala-ci.yml
+++ b/.github/workflows/scala-ci.yml
@@ -6,12 +6,15 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - spark-version: 3.5.6
+          - spark-version: 3.5.7
             java-version: 11
-          - spark-version: 3.5.6
+          - spark-version: 3.5.7
             java-version: 17
           - spark-version: 4.0.1
             java-version: 17
+          - spark-version: 4.1.0
+            java-version: 17
+
     runs-on: ubuntu-latest
     env:
       # fixing this error after tests success: sbt.ForkMain failed with exit code 134
@@ -19,12 +22,12 @@ jobs:
       JAVA_OPTS: -Xms2048M -Xmx2048M -Xss6M -XX:ReservedCodeCacheSize=256M -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC -Dfile.encoding=UTF-8
       JVM_OPTS:  -Xms2048M -Xmx2048M -Xss6M -XX:ReservedCodeCacheSize=256M -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC -Dfile.encoding=UTF-8
     steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-java@v4
+    - uses: actions/checkout@v6
+    - uses: actions/setup-java@v5
       with:
         distribution: "zulu"
         java-version: "${{ matrix.java-version }}"
-    - uses: actions/cache@v4
+    - uses: actions/cache@v5
       with:
         path: |
           ~/.ivy2/cache
diff --git a/.github/workflows/scala-publish.yml b/.github/workflows/scala-publish.yml
index a9b0547e1..c2354ec10 100644
--- a/.github/workflows/scala-publish.yml
+++ b/.github/workflows/scala-publish.yml
@@ -27,12 +27,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0 # sbt-git requires the full history to determine the version
 
       - name: Set up JDK
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           java-version: "${{ matrix.java-version }}"
           distribution: 'zulu'
diff --git a/build.sbt b/build.sbt
index 13561823f..44039cae0 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,12 +3,12 @@ import laika.config.SyntaxHighlighting
 import laika.format.Markdown.GitHubFlavor
 import org.typelevel.scalacoptions.ScalacOptions
 
-lazy val sparkVer = sys.props.getOrElse("spark.version", "3.5.6")
+lazy val sparkVer = sys.props.getOrElse("spark.version", "3.5.7")
 lazy val sparkMajorVer = sparkVer.substring(0, 1)
 lazy val sparkBranch = sparkVer.substring(0, 3)
 lazy val scalaVersions = sparkMajorVer match {
-  case "4" => Seq("2.13.16")
-  case "3" => Seq("2.12.20", "2.13.16")
+  case "4" => Seq("2.13.18")
+  case "3" => Seq("2.12.21", "2.13.18")
   case _ => throw new IllegalArgumentException(s"Unsupported Spark version: $sparkVer.")
 }
 lazy val scalaVer = sys.props.getOrElse("scala.version", scalaVersions.head)
@@ -65,7 +65,7 @@ ThisBuild / crossScalaVersions := scalaVersions
 
 // Scalafix configuration
 ThisBuild / semanticdbEnabled := true
-ThisBuild / semanticdbVersion := "4.12.3" // The maximal version that supports both 2.13.12 and 2.12.18
+ThisBuild / semanticdbVersion := "4.14.5"
 
 // Don't publish the root project
 publishArtifact := false
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 47334f8d6..c1cec25d4 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -5,26 +5,26 @@ ThisBuild / libraryDependencySchemes ++= Seq(
   "org.scala-lang.modules" %% "scala-xml" % VersionScheme.Always
 )
 
-addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.3.1")
+addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.4.4")
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "2.3.1")
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.5")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.6")
 
 // Protobuf things needed for the Spark Connect
-addSbtPlugin("com.thesamet" % "sbt-protoc" % "1.0.7")
+addSbtPlugin("com.thesamet" % "sbt-protoc" % "1.0.8")
 libraryDependencies += "com.thesamet.scalapb" %% "compilerplugin" % "0.10.10"
 
 // Scalafix
-addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.14.3")
+addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.14.5")
 
 // SBT CI Release
-addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.11.1")
+addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.11.2")
 
 // JMH & benchmarking
-addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.7")
+addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.8")
 
 // Laika
 addSbtPlugin("org.typelevel" % "laika-sbt" % "1.3.2")
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.7.2")
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.8.2")
 
 // Typelevel helper
 addSbtPlugin("org.typelevel" % "sbt-tpolecat" % "0.5.2")
@@ -36,4 +36,4 @@ libraryDependencies ++= Seq(
   "io.circe" %% "circe-core",
   "io.circe" %% "circe-generic",
   "io.circe" %% "circe-parser"
-).map(_ % circeVersion)
\ No newline at end of file
+).map(_ % circeVersion)
diff --git a/python/dev/build_jar.py b/python/dev/build_jar.py
index 94f8bbc0e..f291f6f04 100644
--- a/python/dev/build_jar.py
+++ b/python/dev/build_jar.py
@@ -8,7 +8,7 @@ def build(spark_versions: Sequence[str] = ["4.0.1"]):
     for spark_version in spark_versions:
         print("Building GraphFrames JAR...")
         print(f"SPARK_VERSION: {spark_version[:3]}")
-        assert spark_version[:3] in {"3.5", "4.0"}, "Unsupported spark version!"
+        assert spark_version[:3] in {"3.5", "4.0", "4.1"}, "Unsupported spark version!"
 
         project_root = Path(__file__).parent.parent.parent
         sbt_executable = (