diff --git a/plugin/src/sbt-test/paradox/custom-configuration/project/build.properties b/plugin/src/sbt-test/paradox/custom-configuration/project/build.properties
deleted file mode 100644
index 080a737e..00000000
--- a/plugin/src/sbt-test/paradox/custom-configuration/project/build.properties
+++ /dev/null
@@ -1 +0,0 @@
-sbt.version=1.3.0
diff --git a/plugin/src/sbt-test/paradox/default-theme/project/build.properties b/plugin/src/sbt-test/paradox/default-theme/project/build.properties
deleted file mode 100644
index 080a737e..00000000
--- a/plugin/src/sbt-test/paradox/default-theme/project/build.properties
+++ /dev/null
@@ -1 +0,0 @@
-sbt.version=1.3.0
diff --git a/plugin/src/sbt-test/paradox/generated-source/project/build.properties b/plugin/src/sbt-test/paradox/generated-source/project/build.properties
deleted file mode 100644
index c0bab049..00000000
--- a/plugin/src/sbt-test/paradox/generated-source/project/build.properties
+++ /dev/null
@@ -1 +0,0 @@
-sbt.version=1.2.8