diff --git a/ragconnect.base/src/main/jastadd/Navigation.jrag b/ragconnect.base/src/main/jastadd/Navigation.jrag
index 08ef63ff423d9146cb33287487d652e52df5ce57..8b23c000fb8136af504d6dc452a42d5dd6ae82ca 100644
--- a/ragconnect.base/src/main/jastadd/Navigation.jrag
+++ b/ragconnect.base/src/main/jastadd/Navigation.jrag
@@ -136,6 +136,9 @@ aspect RagConnectNavigation {
 //    return containedFile().getFileName();
   }
 
+  // --- isFirstInList ---
+  inh boolean DependencyDefinition.isFirstInList();
+  eq ConnectSpecification.getDependencyDefinition(int index).isFirstInList() = index == 0;
 
   //--- givenPortTargetList ---
   syn List<PortTarget> RagConnect.givenPortTargetList() {
diff --git a/ragconnect.base/src/main/jastadd/Warnings.jrag b/ragconnect.base/src/main/jastadd/Warnings.jrag
index 76ca00169039bde4cc04e896d36e94a7694008d9..49a36233c463f5c8b0b1eb391e490ff526a94472 100644
--- a/ragconnect.base/src/main/jastadd/Warnings.jrag
+++ b/ragconnect.base/src/main/jastadd/Warnings.jrag
@@ -7,6 +7,10 @@ aspect Warnings {
     when ragconnect().configIncrementalOptionActive()
     to RagConnect.warnings();
 
+  DependencyDefinition contributes warning("Dependency definition are deprecated since 1.0.0!")
+    when this.isFirstInList()  // print warning only once for first dependency definition
+    to RagConnect.warnings();
+
   PortDefinition contributes warning("No dependency definitions are given, and incremental evaluation is disabled. No messages will be sent for this!")
     when getSend() && ragconnect().allDependencyDefinitionList().isEmpty() && !ragconnect().configIncrementalOptionActive()
     to RagConnect.warnings();
diff --git a/ragconnect.base/src/main/resources/dependencyDefinition.mustache b/ragconnect.base/src/main/resources/dependencyDefinition.mustache
index 891935029b5c5345df4dd7546705af347a422a5e..7c2ac5ab06d2e52f5f2ba5a086167c815ac5254a 100644
--- a/ragconnect.base/src/main/resources/dependencyDefinition.mustache
+++ b/ragconnect.base/src/main/resources/dependencyDefinition.mustache
@@ -1,3 +1,7 @@
+/**
+* @deprecated Manual dependency definitions are not fully tested any longer since 1.0.0, see <a href="https://jastadd.pages.st.inf.tu-dresden.de/ragconnect-dev/dsl/#dependency-definitions">https://jastadd.pages.st.inf.tu-dresden.de/ragconnect-dev/dsl/#dependency-definitions</a>
+*/
+@Deprecated(since = "1.0.0")
 public void {{targetParentTypeName}}.{{dependencyMethodName}}({{sourceParentTypeName}} source) {
   add{{internalRelationPrefix}}Source(source);
 }
diff --git a/ragconnect.tests/build.gradle b/ragconnect.tests/build.gradle
index 128ea453b166485ca4be929778336347baa7691b..c5e6f13b574d6e93ee635a265c6f0cfe9b718793 100644
--- a/ragconnect.tests/build.gradle
+++ b/ragconnect.tests/build.gradle
@@ -49,9 +49,9 @@ dependencies {
     implementation group: 'org.jastadd', name: 'jastadd2', version: '2.3.5-dresden-7'
     relast group: 'org.jastadd', name: 'relast', version: "${relast_version}"
 
-    testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: '5.4.0'
-    testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: '5.4.0'
-    testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.12.1'
+    testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: '5.9.0'
+    testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: '5.9.0'
+    testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.23.1'
     testImplementation group: 'org.awaitility', name: 'awaitility', version: '4.1.1'
     testImplementation group: 'io.github.artsok', name: 'rerunner-jupiter', version: '2.1.6'
 
diff --git a/ragconnect.tests/src/test/01-input/warnings/SomeDependenciesAndInc.expected b/ragconnect.tests/src/test/01-input/warnings/SomeDependenciesAndInc.expected
index 15fab0001ee36aef1e9ba34db195f0e83db9066e..f1154cf41a38be8e3e54e7d1933837705e838ac4 100644
--- a/ragconnect.tests/src/test/01-input/warnings/SomeDependenciesAndInc.expected
+++ b/ragconnect.tests/src/test/01-input/warnings/SomeDependenciesAndInc.expected
@@ -1 +1,2 @@
+TestSomeDependencies.connect Line 3, column 1: Dependency definition are deprecated since 1.0.0!
 TestSomeDependencies.connect Line 3, column 1: Dependency definition should not be used if incremental evaluation is enabled!
diff --git a/ragconnect.tests/src/test/01-input/warnings/SomeDependenciesAndNoIncAndCacheAll.expected b/ragconnect.tests/src/test/01-input/warnings/SomeDependenciesAndNoIncAndCacheAll.expected
index 732463caf9bfabae3cefe5d2555cb8cc6b85870b..e4d442f74bfdcb87dbe720381cb8d05b51734527 100644
--- a/ragconnect.tests/src/test/01-input/warnings/SomeDependenciesAndNoIncAndCacheAll.expected
+++ b/ragconnect.tests/src/test/01-input/warnings/SomeDependenciesAndNoIncAndCacheAll.expected
@@ -1 +1,2 @@
 TestSomeDependencies.connect Line 1, column 1: Incremental evaluation is disabled, but cache=all is set. This might lead to no messages sent!
+TestSomeDependencies.connect Line 3, column 1: Dependency definition are deprecated since 1.0.0!
diff --git a/ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/Errors.java b/ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/ErrorsTest.java
similarity index 97%
rename from ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/Errors.java
rename to ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/ErrorsTest.java
index c4be09cf0ad00750f6b349a6bede828c2a121e2d..4853b6a7e62f6e71878b37700a72fe2515655200 100644
--- a/ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/Errors.java
+++ b/ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/ErrorsTest.java
@@ -21,7 +21,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
  *
  * @author rschoene - Initial contribution
  */
-public class Errors extends RagConnectTest {
+public class ErrorsTest extends RagConnectTest {
 
   private static final String ERROR_DIRECTORY = "errors/";
   private static final String OUTPUT_DIRECTORY = TestUtils.OUTPUT_DIRECTORY_PREFIX + ERROR_DIRECTORY;
diff --git a/ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/Warnings.java b/ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/WarningsTest.java
similarity index 96%
rename from ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/Warnings.java
rename to ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/WarningsTest.java
index e860dfa400b249febcd4bdae6c87e518644c3bf5..50dc46d2bff45651d46b473c7bf6a8268717385b 100644
--- a/ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/Warnings.java
+++ b/ragconnect.tests/src/test/java/org/jastadd/ragconnect/tests/WarningsTest.java
@@ -20,7 +20,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
  *
  * @author rschoene - Initial contribution
  */
-public class Warnings extends RagConnectTest {
+public class WarningsTest extends RagConnectTest {
 
   private static final String WARNING_DIRECTORY = "warnings/";
   private static final String OUTPUT_DIRECTORY = TestUtils.OUTPUT_DIRECTORY_PREFIX + WARNING_DIRECTORY;
@@ -85,8 +85,8 @@ public class Warnings extends RagConnectTest {
 
     out = out.substring(out.indexOf(startOfWarningsPattern) + startOfWarningsPattern.length());
 
-    TestUtils.assertLinesMatch(WARNING_DIRECTORY, expectedName, out);
+    logger.debug("ragconnect for " + expectedName + " returned:\n{}", out);
 
-    logger.info("ragconnect for " + expectedName + " returned:\n{}", out);
+    TestUtils.assertLinesMatch(WARNING_DIRECTORY, expectedName, out);
   }
 }