diff --git a/.scala-steward.conf b/.scala-steward.conf
index 2c7ae71b23..4f00bf3247 100644
--- a/.scala-steward.conf
+++ b/.scala-steward.conf
@@ -19,7 +19,8 @@ updates.ignore = [
   { groupId = "com.typesafe", artifactId = "ssl-config-core" },
   { groupId = "com.typesafe.sbt", artifactId = "sbt-osgi" },
   { groupId = "org.agrona", artifactId = "agrona" },
-  { groupId = "org.mockito", artifactId = "mockito-core" }
+  { groupId = "org.mockito", artifactId = "mockito-core" },
+  { groupId = "com.typesafe.sbt", artifactId = "sbt-osgi" }
 ]
 
 updates.pin [
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 925895924e..0d67eda2d9 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -12,7 +12,8 @@ addSbtPlugin("com.lightbend.sbt" % "sbt-java-formatter" % "0.6.0")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.4")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.15")
 // sbt-osgi 0.9.5 is available but breaks including jdk9-only classes
-addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.9.6")
+// sbt-osgi 0.9.6 is available but breaks populating akka-protobuf-v3
+addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.9.4")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.7.0")
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.0.1")
 addSbtPlugin("com.eed3si9n" % "sbt-unidoc" % "0.4.3")