diff --git a/astrometry.spec b/astrometry.spec
index 38db853..4666fe1 100644
--- a/astrometry.spec
+++ b/astrometry.spec
@@ -69,9 +69,9 @@ Patch4:         %{name}-0.73-Don-t-install-non-free-files-images-and-NGC2000.0-c
 
 BuildRequires:  gcc
 BuildRequires:  netpbm-devel
-BuildRequires:  python2-numpy
-BuildRequires:  python2-astropy
-BuildRequires:  python2-devel
+BuildRequires:  python3-numpy
+BuildRequires:  python3-astropy
+BuildRequires:  python3-devel
 BuildRequires:  swig
 BuildRequires:  xorg-x11-proto-devel
 
@@ -177,13 +177,15 @@ Summary:        Libraries for %{name}
 %description libs
 Libraries for %{name}
 
-%package -n python2-%{name}
+%package -n python3-%{name}
 Summary:        Python modules from %{name}
-Requires:       python2-astropy
+Requires:       python3-astropy
 Provides:       %{name}-python2 = %{version}-%{release}
 Obsoletes:      %{name}-python2 < %{version}-%{release}
+Provides:       python2-%{name} = %{version}-%{release}
+Obsoletes:      python2-%{name} < %{version}-%{release}
 
-%description -n python2-%{name}
+%description -n python3-%{name}
 %{summary}
 
 
@@ -218,12 +220,13 @@ make SYSTEM_GSL=yes all py extra ARCH_FLAGS="%{optflags}"
 %install
 %{make_install} SYSTEM_GSL=yes \
                 INSTALL_DIR=%{buildroot}%{_prefix} \
-                PY_BASE_INSTALL_DIR=%{buildroot}%{python2_sitearch}/%{name} \
+                PYTHON=%{__python3} \
+                PY_BASE_INSTALL_DIR=%{buildroot}%{python3_sitearch}/%{name} \
                 INCLUDE_INSTALL_DIR=%{buildroot}%{_includedir}/%{name} \
                 LIB_INSTALL_DIR=%{buildroot}%{_libdir} \
                 BIN_INSTALL_DIR=%{buildroot}%{_bindir} \
                 DATA_INSTALL_DIR=%{buildroot}%{_datadir}/%{name}/data \
-                PY_BASE_LINK_DIR=%{python2_sitearch}/%{name} \
+                PY_BASE_LINK_DIR=%{python3_sitearch}/%{name} \
                 ETC_INSTALL_DIR=%{buildroot}%{_sysconfdir} \
                 MAN1_INSTALL_DIR=%{buildroot}%{_mandir}/man1 \
                 DOC_INSTALL_DIR=%{buildroot}%{_docdir}/%{name} \
@@ -250,10 +253,10 @@ rm -f %{buildroot}%{_libdir}/*.a
 # Fix wrong python interpreter
 pushd %{buildroot}%{_bindir}
 for exec in degtohms image2pnm removelines text2fits hmstodeg votabletofits uniformize merge-columns; do
-        sed -i "s,/usr/bin/env python,%{__python2},g" $exec
+        sed -i "s,/usr/bin/env python,%{__python3},g" $exec
 done
 popd
-find %{buildroot}/%{python2_sitearch}/%{name} -name '*.py' | xargs sed -i '1s|^#!.*|#!%{__python2}|'
+find %{buildroot}/%{python3_sitearch}/%{name} -name '*.py' | xargs sed -i '1s|^#!.*|#!%{__python3}|'
 
 # LICENSE file is managed by %%license scriptlet
 rm -f %{buildroot}%{_docdir}/%{name}/LICENSE
@@ -310,12 +313,13 @@ make test ARCH_FLAGS="%{optflags}"
 %license LICENSE
 %{_libdir}/*.so.*
 
-%files -n python2-%{name}
-%{python2_sitearch}/*
+%files -n python3-%{name}
+%{python3_sitearch}/*
 %{_bindir}/*.py
 
 %changelog
 * Sat Jul 14 2018 Christian Dersch <lupinix@fedoraproject.org> - 0.74-3
+- Switch to Python 3
 - BuildRequires: gcc
 
 * Thu Jul 12 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.74-2