diff --git a/.drone.yml b/.drone.yml
index 14a67a41edc3..d9d9d223b88a 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -40,8 +40,7 @@ pipeline:
     commands:
       - cp -R . /tmp/3/ && cd /tmp/3/
       - git submodule update --init --recursive --jobs 7
-      - export PATH=/tmp/4/project/scripts:$PATH
-      - sbt community-build/test
+      - ./project/scripts/sbt community-build/test
 
   test_sbt:
     group: test
diff --git a/community-build/community-projects/fastparse b/community-build/community-projects/fastparse
index 3cd994617054..79431b056713 160000
--- a/community-build/community-projects/fastparse
+++ b/community-build/community-projects/fastparse
@@ -1 +1 @@
-Subproject commit 3cd9946170543fef8bd89d4d2445805c90f0232f
+Subproject commit 79431b0567131084e82ed1f5769c3063e2917bf6
diff --git a/community-build/community-projects/sourcecode b/community-build/community-projects/sourcecode
index 54291ae38493..f8a839871c02 160000
--- a/community-build/community-projects/sourcecode
+++ b/community-build/community-projects/sourcecode
@@ -1 +1 @@
-Subproject commit 54291ae384937a6d140b17502848a0bf96873d61
+Subproject commit f8a839871c02a7ef45afc4bfa6ed2688e7e67aa1
diff --git a/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala b/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
index eef7623d2dfa..badcb38d0ab7 100644
--- a/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
+++ b/community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala
@@ -58,11 +58,19 @@ class CommunityBuildTest {
     val pluginFilePath = communitybuildDir.resolve("sbt-dotty-sbt").toAbsolutePath().toString()
 
     // Run the sbt command with the compiler version and sbt plugin set in the build
-    val arguments = extraSbtArgs ++ Seq(
-      "-sbt-version", "1.2.7",
-      s"--addPluginSbtFile=$pluginFilePath",
-      s";clean ;set updateOptions in Global ~= (_.withLatestSnapshots(false)) ;++$compilerVersion! $testCommand"
-    )
+    val arguments = {
+      val sbtProps = Option(System.getProperty("sbt.ivy.home")) match {
+        case Some(ivyHome) =>
+          Seq(s"-Dsbt.ivy.home=$ivyHome")
+        case _ =>
+          Seq()
+      }
+      extraSbtArgs ++ sbtProps ++ Seq(
+        "-sbt-version", "1.2.7",
+        s"--addPluginSbtFile=$pluginFilePath",
+        s";clean ;set updateOptions in Global ~= (_.withLatestSnapshots(false)) ;++$compilerVersion! $testCommand"
+      )
+    }
 
     val exitCode = exec("sbt", arguments: _*)