diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Revision history for tasty-lua
 
+## 0.2.3 -- 2020-08-15
+
+- CI now also builds with for GHC 8.10.
+
+- Errors are now explicitly converted to strings before matched
+  when using `error_matches`.
+
+- Relax version limits for tasty and hslua, allowing tasty-1.3.*
+  and hslua-1.2.*.
+
 ## 0.2.2 -- 2020-01-26
 
 - Avoid compilation warnings on GHC 8.2 and older. Monoid
diff --git a/tasty-lua.cabal b/tasty-lua.cabal
--- a/tasty-lua.cabal
+++ b/tasty-lua.cabal
@@ -1,5 +1,5 @@
 name:                tasty-lua
-version:             0.2.2
+version:             0.2.3
 synopsis:            Write tests in Lua, integrate into tasty.
 description:         Allow users to define tasty tests from Lua.
 homepage:            https://github.com/hslua/tasty-lua
@@ -19,7 +19,8 @@
                    , GHC == 8.2.2
                    , GHC == 8.4.4
                    , GHC == 8.6.5
-                   , GHC == 8.8.1
+                   , GHC == 8.8.3
+                   , GHC == 8.10.1
 
 source-repository head
   type:              git
@@ -29,8 +30,8 @@
   build-depends:       base        >= 4.9    && < 5
                      , bytestring  >= 0.10.2 && < 0.11
                      , file-embed  >= 0.0    && < 0.1
-                     , hslua       >= 1.0.3  && < 1.2
-                     , tasty       >= 1.2    && < 1.3
+                     , hslua       >= 1.0.3  && < 1.3
+                     , tasty       >= 1.2    && < 1.4
                      , text        >= 1.0    && < 1.3
   exposed-modules:     Test.Tasty.Lua
                      , Test.Tasty.Lua.Core
diff --git a/tasty.lua b/tasty.lua
--- a/tasty.lua
+++ b/tasty.lua
@@ -78,7 +78,7 @@
   if success then
     return false
   end
-  return msg:match(pattern)
+  return tostring(msg):match(pattern)
 end
 
 register_assertor('is_truthy', is_truthy, "expected a truthy value, got %s")