diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,7 +1,23 @@
+1.8.1 (15 Feb 2025)
+-------------------
+
+- Require `data-default-class >= 0.2`
+- Allow `diagrams-lib-1.5`
+- Test on GHC 9.12
+- Drop support for GHC 8.2
+
 1.8.0.1 (1 Nov 2021)
 --------------------
 
 - Include a migration guide for updating to version 1.8.
+
+Hackage revisions:
+- r1: test with GHC 9.2
+- r2 (14 Sep 2024)
+    - allow `containers-0.7` and test with GHC 9.4, 9.6, 9.8, and 9.10
+    - drop support for GHC 8.0
+- r3 (5 Nov 2024)
+    - allow `data-default-class-0.2`
 
 1.8 (15 Oct 2021)
 -----------------
diff --git a/SVGFonts.cabal b/SVGFonts.cabal
--- a/SVGFonts.cabal
+++ b/SVGFonts.cabal
@@ -1,5 +1,5 @@
 Name:             SVGFonts
-Version:          1.8.0.1
+Version:          1.8.1
 Synopsis:         Fonts from the SVG-Font format
 Description:      Native font support for the diagrams framework (<https://diagrams.github.io/>). Note that this package can be used with any diagrams backend, not just the SVG backend.  The SVG-font format is easy to parse
                   and was therefore chosen for a font library completely written in Haskell.
@@ -34,7 +34,7 @@
 data-files:       fonts/*.svg
 extra-source-files: CHANGES.md, README.md, diagrams/*.svg
 extra-doc-files:    diagrams/*.svg
-Tested-with:      GHC ==7.10.3 || ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1
+Tested-with:      GHC ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.7 || ==9.0.2 || ==9.2.8 || ==9.4.8 || ==9.6.5 || ==9.8.2 || ==9.10.1 || ==9.12.1
 source-repository head
   type: git
   location: https://github.com/diagrams/SVGFonts.git
@@ -49,10 +49,10 @@
         bytestring >= 0.10 && < 1.0,
         cereal,
         cereal-vector,
-        containers >= 0.4 && < 0.7,
-        data-default-class < 0.2,
+        containers >= 0.4 && < 0.8,
+        data-default-class >= 0.2 && < 0.3,
         diagrams-core >= 1.3 && < 1.6,
-        diagrams-lib >= 1.3 && < 1.5,
+        diagrams-lib >= 1.3 && < 1.6,
         directory >= 1.1,
         blaze-svg >= 0.3.3,
         blaze-markup >= 0.5,