diff --git a/buildSrc/src/main/kotlin/cpg.common-conventions.gradle.kts b/buildSrc/src/main/kotlin/cpg.common-conventions.gradle.kts
index 42ddb6e7d9..f3bd20c5bb 100644
--- a/buildSrc/src/main/kotlin/cpg.common-conventions.gradle.kts
+++ b/buildSrc/src/main/kotlin/cpg.common-conventions.gradle.kts
@@ -1,3 +1,4 @@
+import org.gradle.accessors.dm.LibrariesForLibs
 import org.jetbrains.dokka.gradle.DokkaTask
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 import org.gradle.api.services.BuildService;
@@ -164,3 +165,11 @@ kover {
         }
     }
 }
+
+// Common dependencies that we need for all modules
+val libs = the<LibrariesForLibs>()  // necessary to be able to use the version catalog in buildSrc
+dependencies {
+    implementation(libs.apache.commons.lang3)
+    implementation(libs.neo4j.ogm.core)
+    implementation(libs.jackson)
+}
\ No newline at end of file
diff --git a/cpg-core/build.gradle.kts b/cpg-core/build.gradle.kts
index d21606d204..40d27d3269 100644
--- a/cpg-core/build.gradle.kts
+++ b/cpg-core/build.gradle.kts
@@ -52,13 +52,10 @@ tasks.test {
 }
 
 dependencies {
-    api(libs.apache.commons.lang3)
-    api(libs.neo4j.ogm.core)
-    api(libs.jackson)
+    api(libs.slf4j.api)
 
     implementation(libs.bundles.log4j)
     implementation(libs.kotlin.reflect)
-
     implementation(libs.jacksonyml)
 
     testImplementation(libs.junit.params)
diff --git a/cpg-language-cxx/build.gradle.kts b/cpg-language-cxx/build.gradle.kts
index 71a3cac919..219448f656 100644
--- a/cpg-language-cxx/build.gradle.kts
+++ b/cpg-language-cxx/build.gradle.kts
@@ -41,15 +41,15 @@ publishing {
 
 dependencies {
     // Eclipse dependencies
-    api(libs.eclipse.runtime) {
+    implementation(libs.eclipse.runtime) {
         // For some reason, this group name is wrong
         exclude("org.osgi.service", "org.osgi.service.prefs")
     }
-    api(libs.osgi.service)
-    api(libs.icu4j)
+    implementation(libs.osgi.service)
+    implementation(libs.icu4j)
 
     // CDT
-    api(libs.eclipse.cdt.core)
+    implementation(libs.eclipse.cdt.core)
 
     testImplementation(libs.junit.params)
     testImplementation(project(":cpg-analysis"))
diff --git a/cpg-language-java/build.gradle.kts b/cpg-language-java/build.gradle.kts
index d8a0986a68..5f56c6077a 100644
--- a/cpg-language-java/build.gradle.kts
+++ b/cpg-language-java/build.gradle.kts
@@ -40,5 +40,5 @@ publishing {
 }
 
 dependencies {
-    api(libs.javaparser)
+    implementation(libs.javaparser)
 }
diff --git a/cpg-language-jvm/build.gradle.kts b/cpg-language-jvm/build.gradle.kts
index 6502dfa23a..16e6c00fe8 100644
--- a/cpg-language-jvm/build.gradle.kts
+++ b/cpg-language-jvm/build.gradle.kts
@@ -40,7 +40,7 @@ publishing {
 }
 
 dependencies {
-    api(libs.bundles.sootup)
+    implementation(libs.bundles.sootup)
     // needed until https://github.com/antlr/antlr4/issues/3895 is fixed
     runtimeOnly("org.antlr:antlr4-runtime") {
         version {
diff --git a/cpg-neo4j/build.gradle.kts b/cpg-neo4j/build.gradle.kts
index 82377fb321..496f37df4e 100644
--- a/cpg-neo4j/build.gradle.kts
+++ b/cpg-neo4j/build.gradle.kts
@@ -49,10 +49,10 @@ publishing {
 
 dependencies {
     // neo4j
-    api(libs.bundles.neo4j)
+    implementation(libs.bundles.neo4j)
 
     // Command line interface support
-    api(libs.picocli)
+    implementation(libs.picocli)
     annotationProcessor(libs.picocli.codegen)
 
     testImplementation(testFixtures(projects.cpgCore))
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index bb1dda77cc..a4ad4e068f 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -6,6 +6,7 @@ log4j = "2.24.0"
 spotless = "6.25.0"
 nexus-publish = "2.0.0"
 sootup = "1.3.0"
+slf4j = "2.0.16"
 
 [libraries]
 kotlin-reflect = { module = "org.jetbrains.kotlin:kotlin-reflect", version.ref = "kotlin"}
@@ -22,6 +23,8 @@ kotlin-test-junit5 = { module = "org.jetbrains.kotlin:kotlin-test-junit5", versi
 log4j-impl = { module = "org.apache.logging.log4j:log4j-slf4j2-impl", version.ref = "log4j" }
 log4j-core = { module = "org.apache.logging.log4j:log4j-core", version.ref = "log4j" }
 
+slf4j-api = { module = "org.slf4j:slf4j-api", version.ref = "slf4j"}
+
 apache-commons-lang3 = { module = "org.apache.commons:commons-lang3", version = "3.17.0"}
 neo4j-ogm-core = { module = "org.neo4j:neo4j-ogm-core", version.ref = "neo4j"}
 neo4j-ogm-bolt-driver = { module = "org.neo4j:neo4j-ogm-bolt-driver", version.ref = "neo4j"}