diff --git a/libraries/base/changelog.md b/libraries/base/changelog.md
index 3b5dddf693637eda0bcea95e84f8388100d5f878..e2aa84b599ff2d87304fc7e0d08e49e027fecf11 100644
--- a/libraries/base/changelog.md
+++ b/libraries/base/changelog.md
@@ -41,8 +41,8 @@
 
   * Add `resizeSmallMutableArray#` to `GHC.Exts`.
 
-## 4.13.0.0 *TBA*
-  * Bundled with GHC *TBA*
+## 4.13.0.0 *July 2019*
+  * Bundled with GHC 8.8.1
 
   * The final phase of the `MonadFail` proposal has been implemented: