diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72616504..740f74ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,29 @@ All notable changes to this project will be documented in this file. Currently g
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
+## [0.5.8] — 2018-03-06
+### Fixed
+- Fix issue #53, in which non-decimalize-able (non_)stroking_color properties were raising errors.
+
+## [0.5.7] — 2018-01-20
+### Added
+- `.travis.yml`, but failing on `.to_image()`
+
+### Changed
+- Move from defunct `pycrypto` to `pycryptodome`
+- Update `pdfminer.six` to `20170720`
+
+## [0.5.6] — 2017-11-21
+### Fixed
+- Fix issue #41, in which PDF-object-referenced cropboxes/mediaboxes weren't being fully resolved.
+
+## [0.5.5] — 2017-05-10
+### Added
+- Access to `__version__` from main namespace
+
+### Fixed
+- Fix issue #33, by checking `decode_text`'s argument type
+
 ## [0.5.4] — 2017-04-27
 ### Fixed
 - Pin `pdfminer.six` to version `20151013` (for now), fixing incompatibility
diff --git a/pdfplumber/_version.py b/pdfplumber/_version.py
index 6572b3f1..38cd16b1 100644
--- a/pdfplumber/_version.py
+++ b/pdfplumber/_version.py
@@ -1,2 +1,2 @@
-version_info = (0, 5, 7)
+version_info = (0, 5, 8)
 __version__ = '.'.join(map(str, version_info))
diff --git a/pdfplumber/page.py b/pdfplumber/page.py
index 4ba2bdfb..90c72cd5 100644
--- a/pdfplumber/page.py
+++ b/pdfplumber/page.py
@@ -94,6 +94,7 @@ def point2coord(pt):
 
         NON_DECIMALIZE = [
             "fontname", "name", "upright",
+            "stroking_color", "non_stroking_color",
         ]
 
         def process_object(obj):
diff --git a/tests/pdfs/issue-53-example.pdf b/tests/pdfs/issue-53-example.pdf
new file mode 100644
index 00000000..dcd5cd3d
Binary files /dev/null and b/tests/pdfs/issue-53-example.pdf differ
diff --git a/tests/test-issues.py b/tests/test-issues.py
index d94faa47..cf31bfcd 100644
--- a/tests/test-issues.py
+++ b/tests/test-issues.py
@@ -91,3 +91,9 @@ def test_issue_33(self):
         )
         assert len(pdf.metadata.keys())
         
+    def test_issue_53(self):
+        pdf = pdfplumber.from_path(
+            os.path.join(HERE, "pdfs/issue-53-example.pdf")
+        )
+        assert len(pdf.objects)
+