diff --git a/README.packit b/README.packit
index 2dd6ac1..c6a9a6c 100644
--- a/README.packit
+++ b/README.packit
@@ -1,3 +1,3 @@
 This repository is maintained by packit.
 https://packit.dev/
-The file was generated using packit 0.74.0.post25+ga1e902b.
+The file was generated using packit 0.75.0.post9+g9ce4c01.
diff --git a/plans/main.fmf b/plans/main.fmf
index 2f365ff..74edd5b 100644
--- a/plans/main.fmf
+++ b/plans/main.fmf
@@ -1,6 +1,6 @@
 discover:
     how: fmf
     url: https://github.com/packit/specfile.git
-    ref: 15be0abadeb910dd273cc4dbf4f08c777d8576f0
+    ref: bc4fbbdd7073f69b8ab9a1e1e3afc5140b5c348f
 execute:
     how: tmt
diff --git a/plans/packit-integration.fmf b/plans/packit-integration.fmf
index 52b6315..a0f0582 100644
--- a/plans/packit-integration.fmf
+++ b/plans/packit-integration.fmf
@@ -2,7 +2,7 @@ discover:
     how: fmf
     url: https://github.com/packit/packit
     filter: tier:0 | tier:1
-    ref: a1e902bd8783e1964b9379ea93ef1a062d1d179c
+    ref: 33d32c702b3d26a81e12984d925222ce9935dee7
 prepare:
   - how: install
     copr: packit/packit-dev
diff --git a/python-specfile.spec b/python-specfile.spec
index d1acf50..05a8f68 100644
--- a/python-specfile.spec
+++ b/python-specfile.spec
@@ -13,7 +13,7 @@ in a minimal diff.}
 
 
 Name:           python-specfile
-Version:        0.16.0
+Version:        0.17.0
 Release:        1%{?dist}
 
 Summary:        A library for parsing and manipulating RPM spec files
@@ -25,6 +25,10 @@ Source0:        %{pypi_source specfile}
 BuildArch:      noarch
 
 BuildRequires:  python%{python3_pkgversion}-devel
+%if %{with tests}
+# tests/unit/test_guess_packager.py
+BuildRequires:  git-core
+%endif
 
 
 %description
@@ -67,6 +71,10 @@ Summary:        %{summary}
 
 
 %changelog
+* Thu May 11 2023 Packit <hello@packit.dev> - 0.17.0-1
+- Added a new `guess_packager()` function that uses similar heuristics as `rpmdev-packager`, meaning that the `Specfile.add_changelog_entry()` method no longer requires `rpmdev-packager` to guess the changelog entry author. (#220)
+- The `Specfile.add_changelog_entry()` method now uses dates based on UTC instead of the local timezone. (#223)
+
 * Thu Apr 20 2023 Packit <hello@packit.dev> - 0.16.0-1
 - Added `Specfile.has_autorelease` property to detect if a spec file uses the `%%autorelease` macro. (#221)
 
diff --git a/sources b/sources
index 8a3e292..2794e00 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (specfile-0.16.0.tar.gz) = 296e73d2ea5fe14a1c2f8504cd9772ad5310366d765fb75651a22aaf7021107b16a53c5b8535f85c846005e557552932f483aaabd68487a245717cb7ef789e7d
+SHA512 (specfile-0.17.0.tar.gz) = 236c9a3b74b0c767d1ea0b40a459fb082f59c3e6ce4e0c1fc93525f67d1aa176e56a230d181d0007799b1cb781fccfa94d226cbac06550bde3cc2f8259a8eb09