diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7d23152..29f7f8a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
       matrix:
         os: [ubuntu-22.04]
         scala: [2.12]
-        java: [temurin@11, temurin@17, temurin@21]
+        java: [temurin@17, temurin@21]
     runs-on: ${{ matrix.os }}
     timeout-minutes: 60
     steps:
@@ -41,19 +41,6 @@ jobs:
       - name: Setup sbt
         uses: sbt/setup-sbt@v1
 
-      - name: Setup Java (temurin@11)
-        id: setup-java-temurin-11
-        if: matrix.java == 'temurin@11'
-        uses: actions/setup-java@v5
-        with:
-          distribution: temurin
-          java-version: 11
-          cache: sbt
-
-      - name: sbt update
-        if: matrix.java == 'temurin@11' && steps.setup-java-temurin-11.outputs.cache-hit == 'false'
-        run: sbt +update
-
       - name: Setup Java (temurin@17)
         id: setup-java-temurin-17
         if: matrix.java == 'temurin@17'
@@ -87,11 +74,11 @@ jobs:
         run: sbt '++ ${{ matrix.scala }}' test
 
       - name: Check binary compatibility
-        if: matrix.java == 'temurin@11' && matrix.os == 'ubuntu-22.04'
+        if: matrix.java == 'temurin@17' && matrix.os == 'ubuntu-22.04'
         run: sbt '++ ${{ matrix.scala }}' mimaReportBinaryIssues
 
       - name: Generate API documentation
-        if: matrix.java == 'temurin@11' && matrix.os == 'ubuntu-22.04'
+        if: matrix.java == 'temurin@17' && matrix.os == 'ubuntu-22.04'
         run: sbt '++ ${{ matrix.scala }}' doc
 
       - name: Make target directories
@@ -116,7 +103,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        java: [temurin@11]
+        java: [temurin@17]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -127,19 +114,6 @@ jobs:
       - name: Setup sbt
         uses: sbt/setup-sbt@v1
 
-      - name: Setup Java (temurin@11)
-        id: setup-java-temurin-11
-        if: matrix.java == 'temurin@11'
-        uses: actions/setup-java@v5
-        with:
-          distribution: temurin
-          java-version: 11
-          cache: sbt
-
-      - name: sbt update
-        if: matrix.java == 'temurin@11' && steps.setup-java-temurin-11.outputs.cache-hit == 'false'
-        run: sbt +update
-
       - name: Setup Java (temurin@17)
         id: setup-java-temurin-17
         if: matrix.java == 'temurin@17'
@@ -206,7 +180,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        java: [temurin@11]
+        java: [temurin@17]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -217,19 +191,6 @@ jobs:
       - name: Setup sbt
         uses: sbt/setup-sbt@v1
 
-      - name: Setup Java (temurin@11)
-        id: setup-java-temurin-11
-        if: matrix.java == 'temurin@11'
-        uses: actions/setup-java@v5
-        with:
-          distribution: temurin
-          java-version: 11
-          cache: sbt
-
-      - name: sbt update
-        if: matrix.java == 'temurin@11' && steps.setup-java-temurin-11.outputs.cache-hit == 'false'
-        run: sbt +update
-
       - name: Setup Java (temurin@17)
         id: setup-java-temurin-17
         if: matrix.java == 'temurin@17'
diff --git a/.mergify.yml b/.mergify.yml
index 00c437f..c0fa17f 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -12,7 +12,6 @@ pull_request_rules:
   - or:
     - body~=labels:.*early-semver-patch
     - body~=labels:.*early-semver-minor
-  - status-success=Test (ubuntu-22.04, 2.12, temurin@11)
   - status-success=Test (ubuntu-22.04, 2.12, temurin@17)
   - status-success=Test (ubuntu-22.04, 2.12, temurin@21)
   actions:
diff --git a/build.sbt b/build.sbt
index 3ff3c93..68c468d 100644
--- a/build.sbt
+++ b/build.sbt
@@ -21,7 +21,7 @@ inThisBuild(List(
       .withMergeMinors(true)
   }},
 
-  githubWorkflowJavaVersions := Seq(JavaSpec.temurin("11"), JavaSpec.temurin("17"), JavaSpec.temurin("21")),
+  githubWorkflowJavaVersions := Seq(JavaSpec.temurin("17"), JavaSpec.temurin("21")),
   githubWorkflowTargetTags ++= Seq("v*"),
   githubWorkflowPublishTargetBranches :=
     Seq(RefPredicate.StartsWith(Ref.Tag("v"))),
@@ -53,9 +53,9 @@ lazy val `rsocket-consul-java` = (project in file("."))
         "org.asynchttpclient" % "async-http-client" % "2.14.5",
         "com.google.code.gson" % "gson" % "2.14.0",
         "org.slf4j" % "slf4j-api" % "2.0.17",
-        "org.junit.jupiter" % "junit-jupiter" % "5.14.4" % Test,
-        "org.junit.platform" % "junit-platform-engine" % "1.14.4" % Test,
-        "org.junit.platform" % "junit-platform-launcher" % "1.14.4" % Test,
+        "org.junit.jupiter" % "junit-jupiter" % "6.1.1" % Test,
+        "org.junit.platform" % "junit-platform-engine" % "6.1.1" % Test,
+        "org.junit.platform" % "junit-platform-launcher" % "6.1.1" % Test,
         "net.aichler" % "jupiter-interface" % JupiterKeys.jupiterVersion.value % Test,
         "org.mockito" % "mockito-core" % "5.23.0" % Test,
         "org.slf4j" % "slf4j-nop" % "2.0.17" % Test,