diff --git a/ghc-scientific-0.3.7.0-ghc-9.patch b/ghc-scientific-0.3.7.0-ghc-9.patch
new file mode 100644
index 0000000..d0709b7
--- /dev/null
+++ b/ghc-scientific-0.3.7.0-ghc-9.patch
@@ -0,0 +1,23 @@
+--- scientific-0.3.7.0/scientific.cabal.orig	2023-12-02 16:25:21.209482246 +0100
++++ scientific-0.3.7.0/scientific.cabal	2023-12-02 16:26:23.441324837 +0100
+@@ -86,15 +86,15 @@
+ 
+   ghc-options:      -Wall
+   build-depends:
+-      base                >=4.5     && <4.16
++      base                >=4.5     && <4.19
+     , binary              >=0.5.1   && <0.9
+     , containers          >=0.4.2.1 && <0.7
+     , deepseq             >=1.3.0.0 && <1.5
+-    , hashable            >=1.2.7.0 && <1.4
++    , hashable            >=1.2.7.0 && <1.5
+     , integer-logarithms  >=1.0.3.1 && <1.1
+-    , primitive           >=0.7.1.0 && <0.8
+-    , template-haskell    >=2.8     && <2.18
+-    , text                >=1.2.3.0 && <1.3
++    , primitive           >=0.7.1.0 && <0.9
++    , template-haskell    >=2.8     && <2.20
++    , text                >=1.2.3.0 && <2.1
+ 
+   if flag(bytestring-builder)
+     build-depends:
diff --git a/ghc-scientific.spec b/ghc-scientific.spec
index 41ac86e..2ce0469 100644
--- a/ghc-scientific.spec
+++ b/ghc-scientific.spec
@@ -1,65 +1,85 @@
 %define ghc_ver %(/usr/bin/ghc --numeric-version)
-%define pkgname scientific
+%define pkg_name scientific
 
 Name:          ghc-scientific
-Version:       0.3.3.8
+Version:       0.3.7.0
 Release:       1mamba
 Summary:       GHC scientific library: Numbers represented using scientific notation
 Group:         Development/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      Davide Madrisan <davide.madrisan@gmail.com>
-URL:           http://hackage.haskell.org/package/%{pkgname}
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           http://hackage.haskell.org/package/%{pkg_name}
 Source:        http://hackage.haskell.org/package/scientific-%{version}/scientific-%{version}.tar.gz
+Patch0:        ghc-scientific-0.3.7.0-ghc-9.patch
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
-## AUTOBUILDREQ-END
-BuildRequires: ghc
-BuildRequires: hscolour
+BuildRequires: ghc-hashable-devel
+BuildRequires: ghc-integer-logarithms-devel
+BuildRequires: ghc-libs
+BuildRequires: ghc-primitive-devel
+BuildRequires: glibc-devel
 BuildRequires: libgmp-devel
-#BuildRequires: ghc-hashable -- hashable-1.1.2.5 provided by haskell-platform
-#BuildRequires: ghc-text -- text-0.11.3.1 haskell-platform
+## AUTOBUILDREQ-END
+BuildRequires: ghc >= 9.4.8
 Requires:      ghc = %{ghc_ver}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 GHC scientific library: Numbers represented using scientific notation.
 
+%package devel
+Summary:        Haskell %{pkg_name} library development files
+Provides:       %{name}-static = %{version}-%{release}
+Provides:       %{name}-static%{?_isa} = %{version}-%{release}
+%if %{defined ghc_version}
+Requires:       ghc = %{ghc_version}
+%endif
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description devel
+This package provides the Haskell %{pkg_name} library development files.
+
+%if %{with haddock}
+%package doc
+Summary:        Haskell %{pkg_name} library documentation
+Requires:       ghc-filesystem
+
+%description doc
+This package provides the Haskell %{pkg_name} library documentation.
+%endif
+
 %prep
 %setup -q -n scientific-%{version}
+%patch 0 -p1
 
 %build
-runghc Setup.hs configure -v2 \
-   --prefix=%{_prefix} \
-   --libdir=%{_libdir} \
-   --libexecdir=%{_libexecdir} \
-   --docdir=%{_docdir}/%{name}-%{version}
-
-runghc Setup.hs build
-runghc Setup.hs haddock --executables --html-location=URL --hyperlink-source
+%ghc_lib_build
 
 %install
-[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-runghc Setup.hs copy --destdir=%{buildroot}
-runghc Setup.hs register \
-   --gen-pkg-config="%{buildroot}%{_libdir}/ghc-%{ghc_ver}/%{pkgname}-%{version}/%{pkgname}-%{version}.conf"
+%ghc_lib_install
+
+rm -f %{buildroot}%{_ghclicensedir}/%{name}/LICENSE
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%post
-ghc-pkg register %{_libdir}/ghc-%{ghc_ver}/%{pkgname}-%{version}/%{pkgname}-%{version}.conf &>/dev/null || :
-
-%preun
-ghc-pkg unregister %{pkgname}-%{version} &>/dev/null || :
-
-%files
+%files -f %{name}.files
 %defattr(-,root,root)
-%{_libdir}/ghc-%{ghc_ver}/%{pkgname}-%{version}
-%dir %{_docdir}/%{name}-%{version}
-%{_docdir}/%{name}-%{version}/LICENSE
-%{_docdir}/%{name}-%{version}/html
+%license LICENSE
+
+%files devel -f %{name}-devel.files
+%defattr(-,root,root)
+#%doc CHANGELOG.markdown README.markdown
+
+%if %{with haddock}
+%files doc -f %{name}-doc.files
+%defattr(-,root,root)
+%license LICENSE
+%endif
 
 %changelog
+* Sat Dec 02 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.7.0-1mamba
+- update to 0.3.7.0
+
 * Sun Apr 12 2015 Davide Madrisan <davide.madrisan@gmail.com> 0.3.3.8-1mamba
 - package created by autospec