diff --git a/lib/api-compatibility.json b/lib/api-compatibility.json
index ae9089f9a..f5ede7890 100644
--- a/lib/api-compatibility.json
+++ b/lib/api-compatibility.json
@@ -1 +1 @@
-{ "maximumVersion": "3.8", "minimumVersion": "3.5" }
+{ "maximumVersion": "3.9", "minimumVersion": "3.5" }
diff --git a/src/api-compatibility.json b/src/api-compatibility.json
index ac861d5e4..9d0159258 100644
--- a/src/api-compatibility.json
+++ b/src/api-compatibility.json
@@ -1 +1 @@
-{"maximumVersion": "3.8", "minimumVersion": "3.5"}
+{"maximumVersion": "3.9", "minimumVersion": "3.5"}