diff --git a/package.yaml b/package.yaml
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name: salve
-version: 1.0.6
+version: 1.0.8
 
 category: Distribution
 description:
@@ -16,12 +16,16 @@
 synopsis: Semantic version numbers and constraints.
 
 dependencies:
-  base: '>= 4.9.0 && < 4.13'
+  base: '>= 4.9.0 && < 4.14'
 ghc-options:
   - -Weverything
   - -Wno-implicit-prelude
   - -Wno-safe
   - -Wno-unsafe
+
+when:
+  - condition: impl(ghc >= 8.8.1)
+    ghc-options: -Wno-missing-deriving-strategies
 
 library:
   source-dirs: library
diff --git a/salve.cabal b/salve.cabal
--- a/salve.cabal
+++ b/salve.cabal
@@ -1,11 +1,13 @@
--- This file has been generated from package.yaml by hpack version 0.28.2.
+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.31.0.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 51090f4f73e7c88bd71427ce38292e4d550fda736c4ed5987ccf8d67960f7d88
+-- hash: 019bfde4256d781b68fa896b714bcb5005f6dfe16f62471950ec84239ddf6c75
 
 name:           salve
-version:        1.0.6
+version:        1.0.8
 synopsis:       Semantic version numbers and constraints.
 description:    Salve provides semantic version (SemVer) numbers and constraints (ranges).
 category:       Distribution
@@ -15,7 +17,6 @@
 license:        MIT
 license-file:   LICENSE.markdown
 build-type:     Simple
-cabal-version:  >= 1.10
 extra-source-files:
     CHANGELOG.markdown
     package.yaml
@@ -36,7 +37,9 @@
       library
   ghc-options: -Weverything -Wno-implicit-prelude -Wno-safe -Wno-unsafe
   build-depends:
-      base >=4.9.0 && <4.13
+      base >=4.9.0 && <4.14
+  if impl(ghc >= 8.8.1)
+    ghc-options: -Wno-missing-deriving-strategies
   default-language: Haskell2010
 
 test-suite doctest
@@ -48,6 +51,8 @@
       tests
   ghc-options: -Weverything -Wno-implicit-prelude -Wno-safe -Wno-unsafe -rtsopts -threaded
   build-depends:
-      base >=4.9.0 && <4.13
+      base >=4.9.0 && <4.14
     , doctest >=0.11.0 && <0.17
+  if impl(ghc >= 8.8.1)
+    ghc-options: -Wno-missing-deriving-strategies
   default-language: Haskell2010
diff --git a/stack.yaml b/stack.yaml
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,1 +1,1 @@
-resolver: nightly-2018-10-01
+resolver: lts-13.0