diff --git a/src/compiler/corePublic.ts b/src/compiler/corePublic.ts
index fcbd0cf7e07e9..c3a258cd84edb 100644
--- a/src/compiler/corePublic.ts
+++ b/src/compiler/corePublic.ts
@@ -1,7 +1,7 @@
 namespace ts {
     // WARNING: The script `configurePrerelease.ts` uses a regexp to parse out these values.
     // If changing the text in this section, be sure to test `configurePrerelease` too.
-    export const versionMajorMinor = "3.8";
+    export const versionMajorMinor = "3.9";
     /** The version of the TypeScript compiler release */
     export const version = `${versionMajorMinor}.0-dev`;
 
diff --git a/tests/baselines/reference/api/tsserverlibrary.d.ts b/tests/baselines/reference/api/tsserverlibrary.d.ts
index dbc336fccce23..2d120de005258 100644
--- a/tests/baselines/reference/api/tsserverlibrary.d.ts
+++ b/tests/baselines/reference/api/tsserverlibrary.d.ts
@@ -14,7 +14,7 @@ and limitations under the License.
 ***************************************************************************** */
 
 declare namespace ts {
-    const versionMajorMinor = "3.8";
+    const versionMajorMinor = "3.9";
     /** The version of the TypeScript compiler release */
     const version: string;
     /**
diff --git a/tests/baselines/reference/api/typescript.d.ts b/tests/baselines/reference/api/typescript.d.ts
index 8b600f90fdd41..8484fbf9edf54 100644
--- a/tests/baselines/reference/api/typescript.d.ts
+++ b/tests/baselines/reference/api/typescript.d.ts
@@ -14,7 +14,7 @@ and limitations under the License.
 ***************************************************************************** */
 
 declare namespace ts {
-    const versionMajorMinor = "3.8";
+    const versionMajorMinor = "3.9";
     /** The version of the TypeScript compiler release */
     const version: string;
     /**