diff --git a/appveyor.yml b/appveyor.yml
index 6431d560a..6c0b02ef1 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,19 +11,19 @@ environment:
     # see #4201, https://github.com/haskell-tools/haskell-tools/issues/277
   matrix:
   - OSARCH: "windows-x86_64"
-    GHC_VERSION: "8.6.1.1"
-    GHC_MINOR_VERSION: "8.6.1"
+    GHC_VERSION: "8.6.2"
+    GHC_MINOR_VERSION: "8.6.2"
     GHC: "C:\\ProgramData\\chocolatey\\lib\\ghc\\tools\\ghc-%GHC_MINOR_VERSION%\\bin\\ghc.exe"
-    CABAL_VERSION: "2.4.0.0"
+    CABAL_VERSION: "2.4.1.0"
     CABAL_OPTS: "-fembed_data_files -fbibutils --verbose=2"
     GHC_OPTS: "-fhide-source-paths"
     ARCH: "x64"
     CHOCO_OPTS: ""
   - OSARCH: "windows-i386"
-    GHC_VERSION: "8.6.1.1"
-    GHC_MINOR_VERSION: "8.6.1"
+    GHC_VERSION: "8.6.2"
+    GHC_MINOR_VERSION: "8.6.2"
     GHC: "C:\\ProgramData\\chocolatey\\lib\\ghc\\tools\\ghc-%GHC_MINOR_VERSION%\\bin\\ghc.exe"
-    CABAL_VERSION: "2.4.0.0"
+    CABAL_VERSION: "2.4.1.0"
     CABAL_OPTS: "-flua_32bits -fembed_data_files -fbibutils --verbose=2"
     GHC_OPTS: "-fhide-source-paths"
     ARCH: "x86"