diff --git a/project/build.properties b/project/build.properties
index 72f902892a..c410dc92f6 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1,2 @@
-sbt.version=1.2.7
+# We need to fix javadoc generation to be able to update to 1.2.7, see https://github.com/akka/akka/issues/26100
+sbt.version=1.2.6