diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index f80b3c5382..f213122e00 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -6,6 +6,14 @@ cgap-portal
 Change Log
 ----------
 
+15.5.1
+======
+`PR 774: fix: typerror in ItemDetailList's ShouldUseTable <https://github.com/dbmi-bgm/cgap-portal/pull/774>`_
+
+* Upgrades SPC version
+* fix: typerror, support number value being first
+
+
 15.5.0
 ======
 * Use snovault search modules rather than the local ones (in the src/encoded/search directory).
diff --git a/pyproject.toml b/pyproject.toml
index 5affa5d1b8..05f1f677dd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool.poetry]
 # Note: Various modules refer to this system as "encoded", not "cgap-portal".
 name = "encoded"
-version = "15.5.0"
+version = "15.5.1"
 description = "Computational Genome Analysis Platform"
 authors = ["4DN-DCIC Team <support@4dnucleome.org>"]
 license = "MIT"