diff --git a/_service b/_service
deleted file mode 100644
index 797975e..0000000
--- a/_service
+++ /dev/null
@@ -1,14 +0,0 @@
-<services>
-	<service name="tar_scm" mode="disabled">
-		<param name="scm">git</param>
-		<param name="url">https://github.com/libyal/libolecf</param>
-		<param name="revision">381cbe88af2b333f1a91176b24491c1e472920dc</param>
-		<!-- see configure.ac -->
-		<param name="versionformat">20210512</param>
-	</service>
-	<service name="recompress" mode="disabled">
-		<param name="file">*.tar</param>
-		<param name="compression">xz</param>
-	</service>
-	<service name="set_version" mode="disabled"/>
-</services>
diff --git a/libolecf-20210512.tar.xz b/libolecf-20210512.tar.xz
deleted file mode 100644
index 1304f60..0000000
--- a/libolecf-20210512.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:7819ba1dd8ce048663a0b090100b7c459dd5d11c10e08f51ed5ed514b306b733
-size 181056
diff --git a/libolecf-alpha-20210512.tar.gz b/libolecf-alpha-20210512.tar.gz
new file mode 100644
index 0000000..5653c75
--- /dev/null
+++ b/libolecf-alpha-20210512.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:95cb3adf13cee017acde861ebc45ec83ec85239f20049c2acd0387812f0f275e
+size 1641394
diff --git a/libolecf-alpha-20210512.tar.gz.asc b/libolecf-alpha-20210512.tar.gz.asc
new file mode 100644
index 0000000..1f761ab
--- /dev/null
+++ b/libolecf-alpha-20210512.tar.gz.asc
@@ -0,0 +1,11 @@
+-----BEGIN PGP SIGNATURE-----
+
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diff --git a/libolecf.changes b/libolecf.changes
index 65da49b..77d1132 100644
--- a/libolecf.changes
+++ b/libolecf.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Nov 14 12:38:28 UTC 2021 - Jan Engelhardt <jengelh@inai.de>
+
+- Switch to curated tarballs
+
 -------------------------------------------------------------------
 Sat Jun 26 10:00:47 UTC 2021 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/libolecf.keyring b/libolecf.keyring
new file mode 100644
index 0000000..da327a1
--- /dev/null
+++ b/libolecf.keyring
@@ -0,0 +1,29 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
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+=fRjn
+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/libolecf.spec b/libolecf.spec
index c5e97c5..1ac70c2 100644
--- a/libolecf.spec
+++ b/libolecf.spec
@@ -24,8 +24,10 @@ Summary:        Library and tools to access the OLE 2 Compound File (OLECF) form
 License:        GFDL-1.3-or-later AND LGPL-3.0-or-later
 Group:          Productivity/File utilities
 URL:            https://github.com/libyal/libolecf
-Source:         %name-%version.tar.xz
-Source2:        OLE_Compound_File_format.pdf
+Source:         https://github.com/libyal/libolecf/releases/download/%version/libolecf-alpha-%version.tar.gz
+Source2:        https://github.com/libyal/libolecf/releases/download/%version/libolecf-alpha-%version.tar.gz.asc
+Source3:        %name.keyring
+Source11:       OLE_Compound_File_format.pdf
 Patch1:         system-libs.patch
 BuildRequires:  c_compiler
 BuildRequires:  gettext-tools >= 0.18.1
@@ -91,10 +93,10 @@ Python bindings for libolecf, which can read MS IE cache files.
 
 %prep
 %autosetup -p1
-cp "%SOURCE2" .
+cp %_sourcedir/*.pdf .
 
 %build
-if [ ! -e configure ]; then ./autogen.sh; fi
+autoreconf -fi
 %configure \
     --disable-static \
     --enable-wide-character-type \