diff --git a/ghc-config-ini.changes b/ghc-config-ini.changes
index a0eef31..4dd19c3 100644
--- a/ghc-config-ini.changes
+++ b/ghc-config-ini.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Sep  9 14:43:22 UTC 2020 - Peter Simons <psimons@suse.com>
+
+- Relax over-specified constraint on megaparsec.
+
 -------------------------------------------------------------------
 Mon Aug 31 09:34:31 UTC 2020 - psimons@suse.com
 
diff --git a/ghc-config-ini.spec b/ghc-config-ini.spec
index c09dd72..e4d11ae 100644
--- a/ghc-config-ini.spec
+++ b/ghc-config-ini.spec
@@ -60,6 +60,7 @@ This package provides the Haskell %{pkg_name} library development files.
 %prep
 %autosetup -n %{pkg_name}-%{version}
 cp -p %{SOURCE1} %{pkg_name}.cabal
+cabal-tweak-dep-ver megaparsec '<9' '< 10'
 
 %build
 %ghc_lib_build