diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0c0d3295..c5824c37 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 1.1 (beta)
+# 1.1 (2022-01-21)
 
 - Added support for Python 3.10's builtin optional types (e.g. `int | None`).
 - Fixed handling of commented blocks in YAML files.
diff --git a/poetry.lock b/poetry.lock
index 7983f9ab..4f7e3613 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -2178,10 +2178,6 @@ requests = [
     {file = "ruamel.yaml-0.17.20.tar.gz", hash = "sha256:4b8a33c1efb2b443a93fcaafcfa4d2e445f8e8c29c528d9f5cdafb7cc9e4004c"},
 ]
 "ruamel.yaml.clib" = [
-    {file = "ruamel.yaml.clib-0.2.6-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:6e7be2c5bcb297f5b82fee9c665eb2eb7001d1050deaba8471842979293a80b0"},
-    {file = "ruamel.yaml.clib-0.2.6-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_24_x86_64.whl", hash = "sha256:221eca6f35076c6ae472a531afa1c223b9c29377e62936f61bc8e6e8bdc5f9e7"},
-    {file = "ruamel.yaml.clib-0.2.6-cp310-cp310-win32.whl", hash = "sha256:1070ba9dd7f9370d0513d649420c3b362ac2d687fe78c6e888f5b12bf8bc7bee"},
-    {file = "ruamel.yaml.clib-0.2.6-cp310-cp310-win_amd64.whl", hash = "sha256:77df077d32921ad46f34816a9a16e6356d8100374579bc35e15bab5d4e9377de"},
     {file = "ruamel.yaml.clib-0.2.6-cp35-cp35m-macosx_10_6_intel.whl", hash = "sha256:cfdb9389d888c5b74af297e51ce357b800dd844898af9d4a547ffc143fa56751"},
     {file = "ruamel.yaml.clib-0.2.6-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:7b2927e92feb51d830f531de4ccb11b320255ee95e791022555971c466af4527"},
     {file = "ruamel.yaml.clib-0.2.6-cp35-cp35m-win32.whl", hash = "sha256:ada3f400d9923a190ea8b59c8f60680c4ef8a4b0dfae134d2f2ff68429adfab5"},
diff --git a/pyproject.toml b/pyproject.toml
index aabf61c9..9e1a5bb1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool.poetry]
 
 name = "datafiles"
-version = "1.1b3"
+version = "1.1"
 description = "File-based ORM for dataclasses."
 
 license = "MIT"