diff --git a/build.gradle.kts b/build.gradle.kts
index 687fb271..11ab35dc 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -35,7 +35,6 @@ allprojects {
             versionRegex.matches(candidate.version)
                 || (candidate.group in setOf("org.apache.camel", "org.apache.camel.springboot")
                 && !candidate.version.startsWith("3.18"))
-                || (candidate.group.startsWith("de.fraunhofer.iais.eis.ids") && !candidate.version.startsWith("4.1."))
         }
     }
 }
@@ -43,6 +42,8 @@ allprojects {
 subprojects {
     repositories {
         mavenCentral()
+        // Legacy IAIS Infomodel artifact repo
+        maven("https://gitlab.cc-asp.fraunhofer.de/api/v4/projects/55371/packages/maven")
         mavenLocal()
     }
 
@@ -62,20 +63,21 @@ subprojects {
     }
 
     dependencies {
+        val versions = rootProject.libs.versions
         // Some versions are downgraded for unknown reasons, fix this here
         val groupPins = mapOf(
             "org.jetbrains.kotlin" to mapOf(
-                "*" to rootProject.libs.versions.kotlin.get()
+                "*" to versions.kotlin.get()
             ),
             "com.google.guava" to mapOf(
-                "guava" to rootProject.libs.versions.guava.get()
+                "guava" to versions.guava.get()
             ),
             "com.sun.xml.bind" to mapOf(
-                "jaxb-core" to rootProject.libs.versions.jaxbCore.get(),
-                "jaxb-impl" to rootProject.libs.versions.jaxbImpl.get()
+                "jaxb-core" to versions.jaxbCore.get(),
+                "jaxb-impl" to versions.jaxbImpl.get()
             ),
             "org.eclipse.jetty" to mapOf(
-                "*" to rootProject.libs.versions.jetty.get()
+                "*" to versions.jetty.get()
             )
         )
         // We need to explicitly specify the kotlin version for all kotlin dependencies,
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 8da1ffee..8079e91a 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-idscp2 = "0.18.1"
+idscp2 = "0.18.0"
 ktlint = "0.50.0"
 
 # Kotlin library/compiler version
diff --git a/ids-connector/build.gradle.kts b/ids-connector/build.gradle.kts
index db109ee3..3044c2d8 100644
--- a/ids-connector/build.gradle.kts
+++ b/ids-connector/build.gradle.kts
@@ -40,7 +40,7 @@ dependencies {
 
 // Clears library JARs before copying
 val cleanLibs = tasks.create<Delete>("deleteLibs") {
-    delete("$buildDir/libs/libraryJars", "$buildDir/libs/projectJars")
+    delete(layout.buildDirectory.dir("libs/libraryJars"), layout.buildDirectory.dir("libs/projectJars"))
 }
 // Copies all runtime library JARs to build/libs/lib
 val rootProjectDir: String = rootProject.projectDir.absolutePath
@@ -50,7 +50,7 @@ val copyLibraryJars = tasks.create<Copy>("copyLibraryJars") {
             it.absolutePath.startsWith(rootProjectDir)
         }
     )
-    destinationDir = file("$buildDir/libs/libraryJars")
+    destinationDir = file(layout.buildDirectory.dir("libs/libraryJars"))
     dependsOn(cleanLibs)
 }
 val copyProjectJars = tasks.create<Copy>("copyProjectJars") {
@@ -59,7 +59,7 @@ val copyProjectJars = tasks.create<Copy>("copyProjectJars") {
             it.absolutePath.startsWith(rootProjectDir)
         }
     )
-    destinationDir = file("$buildDir/libs/projectJars")
+    destinationDir = file(layout.buildDirectory.dir("libs/projectJars"))
     dependsOn(cleanLibs)
 }
 
@@ -73,7 +73,7 @@ tasks.withType<Jar> {
     doLast {
         Files.copy(
             Paths.get(archiveFile.get().toString()),
-            Paths.get("$buildDir/libs/projectJars/${archiveFileName.get()}")
+            Paths.get(layout.buildDirectory.file("libs/projectJars/${archiveFileName.get()}").get().toString())
         )
     }
 }
@@ -97,7 +97,7 @@ buildConfig {
 configure<IdeaModel> {
     module {
         // mark as generated sources for IDEA
-        generatedSourceDirs.add(File("$buildDir/generated/source/buildConfig/main/main"))
+        generatedSourceDirs.add(layout.buildDirectory.dir("generated/source/buildConfig/main/main").get().asFile)
     }
 }
 
diff --git a/ids-container-manager/build.gradle.kts b/ids-container-manager/build.gradle.kts
index 0425cecc..4ed3e600 100644
--- a/ids-container-manager/build.gradle.kts
+++ b/ids-container-manager/build.gradle.kts
@@ -13,7 +13,7 @@ protobuf {
 tasks.clean {
     // Sometimes required to fix an error caused by non-existence of this folder.
     doLast {
-        mkdir("${project.buildDir}/classes/kotlin/main")
+        mkdir(layout.buildDirectory.dir("classes/kotlin/main"))
     }
 }
 
diff --git a/ids-infomodel-manager/build.gradle.kts b/ids-infomodel-manager/build.gradle.kts
index b204c655..b293acd3 100644
--- a/ids-infomodel-manager/build.gradle.kts
+++ b/ids-infomodel-manager/build.gradle.kts
@@ -19,7 +19,7 @@ buildConfig {
 configure<IdeaModel> {
     module {
         // mark as generated sources for IDEA
-        generatedSourceDirs.add(File("$buildDir/generated/source/buildConfig/main/main"))
+        generatedSourceDirs.add(layout.buildDirectory.dir("generated/source/buildConfig/main/main").get().asFile)
     }
 }