diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,10 @@
 # Changelog
 
+- 0.8.2.8 (2021-03-04)
+    * Bump `base` upper bound to 4.16
+    * Bump `tasty` upper bound to 1.5
+    * Bump `bytestring` upper bound to 0.12
+
 - 0.8.2.7 (2020-06-30)
     * Bump Cabal version lower bound to 1.10
 
diff --git a/blaze-markup.cabal b/blaze-markup.cabal
--- a/blaze-markup.cabal
+++ b/blaze-markup.cabal
@@ -1,5 +1,5 @@
 Name:         blaze-markup
-Version:      0.8.2.7
+Version:      0.8.2.8
 Homepage:     http://jaspervdj.be/blaze
 Bug-Reports:  http://github.com/jaspervdj/blaze-markup/issues
 License:      BSD3
@@ -19,7 +19,8 @@
 Cabal-version: >= 1.10
 Tested-with:   GHC == 7.8.4, GHC == 7.10.3,
                GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4,
-               GHC == 8.6.5, GHC == 8.8.3, GHC == 8.10.1
+               GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.4,
+               GHC == 9.0.1
 
 Extra-source-files:
   CHANGELOG
@@ -38,10 +39,10 @@
     Text.Blaze.Renderer.Utf8
 
   Build-depends:
-    base          >= 4    && < 4.15,
+    base          >= 4    && < 4.16,
     blaze-builder >= 0.3  && < 0.5,
     text          >= 0.10 && < 1.3,
-    bytestring    >= 0.9  && < 0.11
+    bytestring    >= 0.9  && < 0.12
 
 Test-suite blaze-markup-tests
   Type:             exitcode-stdio-1.0
@@ -64,14 +65,14 @@
     HUnit            >= 1.2  && < 1.7,
     QuickCheck       >= 2.7  && < 2.15,
     containers       >= 0.3  && < 0.7,
-    tasty            >= 1.0  && < 1.4,
+    tasty            >= 1.0  && < 1.5,
     tasty-hunit      >= 0.10 && < 0.11,
     tasty-quickcheck >= 0.10 && < 0.11,
     -- Copied from regular dependencies...
-    base          >= 4    && < 4.15,
+    base          >= 4    && < 4.16,
     blaze-builder >= 0.3  && < 0.5,
     text          >= 0.10 && < 1.3,
-    bytestring    >= 0.9  && < 0.11
+    bytestring    >= 0.9  && < 0.12
 
 Source-repository head
   Type:     git