diff --git a/mail/build.gradle b/mail/build.gradle
index 000015a37d..16f9edd11b 100644
--- a/mail/build.gradle
+++ b/mail/build.gradle
@@ -23,9 +23,9 @@ dependencies {
     implementation files("$bc_pkix")
     implementation project(path: ':core')
 
-    java9Implementation files(":prov")
-    java9Implementation files(":util")
-    java9Implementation files(":pkix")
+    java9Implementation files("$bc_prov")
+    java9Implementation files("$bc_util")
+    java9Implementation files("$bc_pkix")
     java9Implementation files(sourceSets.main.output.classesDirs) {
         builtBy compileJava
     }
diff --git a/mls/build.gradle b/mls/build.gradle
index e277ce4c70..a816a087af 100644
--- a/mls/build.gradle
+++ b/mls/build.gradle
@@ -61,10 +61,9 @@ dependencies {
 //    runtimeOnly "io.grpc:grpc-netty-shaded:${grpcVersion}"
 //    implementation "com.google.protobuf:protobuf-java-util:${protocVersion}"
 
-    java9Implementation project(':core')
-    java9Implementation project(':prov')
-    java9Implementation project(':util')
-    java9Implementation project(':pkix')
+    java9Implementation files("$bc_prov")
+    java9Implementation files("$bc_util")
+    java9Implementation files("$bc_pkix")
     java9Implementation files(sourceSets.main.output.classesDirs) {
         builtBy compileJava
     }