diff --git a/summoner-cli/src/Summoner/GhcVer.hs b/summoner-cli/src/Summoner/GhcVer.hs
index f1a2d47..ff2b82e 100644
--- a/summoner-cli/src/Summoner/GhcVer.hs
+++ b/summoner-cli/src/Summoner/GhcVer.hs
@@ -37,6 +37,8 @@ data GhcVer
     | Ghc884
     | Ghc8107
     | Ghc902
+    | Ghc928
+    | Ghc945
     deriving stock (Eq, Ord, Show, Enum, Bounded)
 
 -- | Converts 'GhcVer' into dot-separated string.
@@ -49,6 +51,8 @@ showGhcVer = \case
     Ghc884  -> "8.8.4"
     Ghc8107 -> "8.10.7"
     Ghc902  -> "9.0.2"
+    Ghc928  -> "9.2.8"
+    Ghc945  -> "9.4.5"
 
 {- | These are old GHC versions that are not working with default GHC versions
 when using Stack.
@@ -67,8 +71,10 @@ latestLts = \case
     Ghc844  -> "lts-12.26"
     Ghc865  -> "lts-14.27"
     Ghc884  -> "lts-16.31"
-    Ghc8107 -> "lts-18.21"
-    Ghc902  -> "nightly-2022-01-10"
+    Ghc8107 -> "lts-18.28"
+    Ghc902  -> "lts-19.33"
+    Ghc928  -> "lts-20.25"
+    Ghc945  -> "nightly-2023-06-18"
 
 -- | Represents PVP versioning (4 numbers).
 data Pvp = Pvp
@@ -92,6 +98,8 @@ baseVerPvp = \case
     Ghc884  -> Pvp 4 13 0 0
     Ghc8107 -> Pvp 4 14 3 0
     Ghc902  -> Pvp 4 15 1 0
+    Ghc928  -> Pvp 4 16 4 0
+    Ghc945  -> Pvp 4 17 0 0
 
 -- | Returns corresponding @base@ version of the given GHC version.
 baseVer :: GhcVer -> Text