diff --git a/.github/workflows/build-play-smoke-dist.yaml b/.github/workflows/build-play-smoke-dist.yaml
index 2aee7d92ba..c2974bcc0a 100644
--- a/.github/workflows/build-play-smoke-dist.yaml
+++ b/.github/workflows/build-play-smoke-dist.yaml
@@ -29,5 +29,5 @@ jobs:
         run: |
           ./gradlew jib -PtargetJDK=8 -Djib.httpTimeout=120000 -Djib.console=plain
           ./gradlew jib -PtargetJDK=11 -Djib.httpTimeout=120000 -Djib.console=plain
-          ./gradlew jib -PtargetJDK=14 -Djib.httpTimeout=120000 -Djib.console=plain
+          ./gradlew jib -PtargetJDK=15 -Djib.httpTimeout=120000 -Djib.console=plain
         working-directory: smoke-tests/play
\ No newline at end of file
diff --git a/.github/workflows/build-springboot-smoke-dist.yaml b/.github/workflows/build-springboot-smoke-dist.yaml
index b1223b0fcd..264f7d73e3 100644
--- a/.github/workflows/build-springboot-smoke-dist.yaml
+++ b/.github/workflows/build-springboot-smoke-dist.yaml
@@ -29,5 +29,5 @@ jobs:
         run: |
           ./gradlew jib -PtargetJDK=8 -Djib.httpTimeout=120000 -Djib.console=plain --stacktrace
           ./gradlew jib -PtargetJDK=11 -Djib.httpTimeout=120000 -Djib.console=plain --stacktrace
-          ./gradlew jib -PtargetJDK=14 -Djib.httpTimeout=120000 -Djib.console=plain --stacktrace
+          ./gradlew jib -PtargetJDK=15 -Djib.httpTimeout=120000 -Djib.console=plain --stacktrace
         working-directory: smoke-tests/springboot
\ No newline at end of file
diff --git a/.github/workflows/nightly.yaml b/.github/workflows/nightly.yaml
index 079f59068f..48dbd30646 100644
--- a/.github/workflows/nightly.yaml
+++ b/.github/workflows/nightly.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [8, 11, 14]
+        java: [8, 11, 15]
       fail-fast: false
     steps:
       - uses: actions/checkout@v2
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 6f0f328963..0005691bff 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [8, 11, 14]
+        java: [8, 11, 15]
       fail-fast: false
     steps:
       - uses: actions/checkout@v2
diff --git a/docs/contributing/running-tests.md b/docs/contributing/running-tests.md
index 3210b7479b..4eedf0e844 100644
--- a/docs/contributing/running-tests.md
+++ b/docs/contributing/running-tests.md
@@ -2,10 +2,10 @@
 
 #### Java versions
 
-Open Telemetry Auto Instrumentation's minimal supported version is java 7.
+Open Telemetry Auto Instrumentation's minimal supported version is java 8.
 All jar files that we produce, unless noted otherwise, have bytecode
-compatible with java 7 runtime. In addition to that we test our code with all
-later java versions as well: from 8 to 14.
+compatible with java 8 runtime. Our test suite is executed against
+java 8, all LTS versions and the latest non-LTS version.
 
 Some libraries that we auto-instrument may have higher minimal requirements.
 In this case we compile and test corresponding auto-instrumentation with
diff --git a/gradle/jacoco.gradle b/gradle/jacoco.gradle
index c051812b80..860b9cd9df 100644
--- a/gradle/jacoco.gradle
+++ b/gradle/jacoco.gradle
@@ -1,7 +1,7 @@
 apply plugin: "jacoco"
 
 jacoco {
-  toolVersion = "0.8.5"
+  toolVersion = "0.8.6"
 }
 
 jacocoTestReport {
diff --git a/instrumentation/akka-http-10.0/akka-http-10.0.gradle b/instrumentation/akka-http-10.0/akka-http-10.0.gradle
index a7846b594f..1f0a4a1c5d 100644
--- a/instrumentation/akka-http-10.0/akka-http-10.0.gradle
+++ b/instrumentation/akka-http-10.0/akka-http-10.0.gradle
@@ -2,6 +2,12 @@ apply from: "$rootDir/gradle/instrumentation.gradle"
 apply from: "$rootDir/gradle/test-with-scala.gradle"
 apply plugin: 'org.unbroken-dome.test-sets'
 
+ext {
+  // TODO remove once Scala/akka supports Java 15
+  // https://docs.scala-lang.org/overviews/jdk-compatibility/overview.html
+  maxJavaVersionForTests = JavaVersion.VERSION_14
+}
+
 testSets {
   version101Test {
     dirName = 'test'
diff --git a/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/PlaySmokeTest.groovy b/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/PlaySmokeTest.groovy
index be851939de..604ce7510d 100644
--- a/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/PlaySmokeTest.groovy
+++ b/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/PlaySmokeTest.groovy
@@ -45,7 +45,7 @@ class PlaySmokeTest extends SmokeTest {
     stopTarget()
 
     where:
-    jdk << [8, 11, 14]
+    jdk << [8, 11, 15]
   }
 
 }
diff --git a/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/SpringBootSmokeTest.groovy b/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/SpringBootSmokeTest.groovy
index b4ed2d11af..d1128f3f04 100644
--- a/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/SpringBootSmokeTest.groovy
+++ b/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/SpringBootSmokeTest.groovy
@@ -63,6 +63,6 @@ class SpringBootSmokeTest extends SmokeTest {
     stopTarget()
 
     where:
-    jdk << [8, 11, 14]
+    jdk << [8, 11, 15]
   }
 }
diff --git a/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/SpringBootWithSamplingSmokeTest.groovy b/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/SpringBootWithSamplingSmokeTest.groovy
index 72c30ee992..26e0239594 100644
--- a/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/SpringBootWithSamplingSmokeTest.groovy
+++ b/smoke-tests/src/test/groovy/io/opentelemetry/smoketest/SpringBootWithSamplingSmokeTest.groovy
@@ -55,6 +55,6 @@ class SpringBootWithSamplingSmokeTest extends SmokeTest {
     stopTarget()
 
     where:
-    jdk << [8, 11, 14]
+    jdk << [8, 11, 15]
   }
 }