diff --git a/MODULE.bazel b/MODULE.bazel
index 73f8271fb63e..8de37e006bbe 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -218,6 +218,7 @@ use_repo(
     "kotlin-compiler-2.0.0-RC1",
     "kotlin-compiler-2.0.20-Beta2",
     "kotlin-compiler-2.1.0-Beta1",
+    "kotlin-compiler-2.1.20-Beta1",
     "kotlin-compiler-embeddable-1.5.0",
     "kotlin-compiler-embeddable-1.5.10",
     "kotlin-compiler-embeddable-1.5.20",
@@ -232,6 +233,7 @@ use_repo(
     "kotlin-compiler-embeddable-2.0.0-RC1",
     "kotlin-compiler-embeddable-2.0.20-Beta2",
     "kotlin-compiler-embeddable-2.1.0-Beta1",
+    "kotlin-compiler-embeddable-2.1.20-Beta1",
     "kotlin-stdlib-1.5.0",
     "kotlin-stdlib-1.5.10",
     "kotlin-stdlib-1.5.20",
@@ -246,6 +248,7 @@ use_repo(
     "kotlin-stdlib-2.0.0-RC1",
     "kotlin-stdlib-2.0.20-Beta2",
     "kotlin-stdlib-2.1.0-Beta1",
+    "kotlin-stdlib-2.1.20-Beta1",
 )
 
 go_sdk = use_extension("@rules_go//go:extensions.bzl", "go_sdk")
diff --git a/java/kotlin-extractor/versions.bzl b/java/kotlin-extractor/versions.bzl
index aecb170b6304..c48f98ae363e 100644
--- a/java/kotlin-extractor/versions.bzl
+++ b/java/kotlin-extractor/versions.bzl
@@ -14,6 +14,7 @@ VERSIONS = [
     "2.0.0-RC1",
     "2.0.20-Beta2",
     "2.1.0-Beta1",
+    "2.1.20-Beta1",
 ]
 
 def _version_to_tuple(v):