diff --git a/source/uwlab_rl/config/extension.toml b/source/uwlab_rl/config/extension.toml
index b6c3f73b..aaba2caa 100644
--- a/source/uwlab_rl/config/extension.toml
+++ b/source/uwlab_rl/config/extension.toml
@@ -1,7 +1,7 @@
 [package]
 
 # Note: Semantic Versioning is used: https://semver.org/
-version = "0.1.3"
+version = "0.1.4"
 
 # Description
 title = "UW Lab RL"
diff --git a/source/uwlab_rl/docs/CHANGELOG.rst b/source/uwlab_rl/docs/CHANGELOG.rst
index 1ddac4d5..8b81c456 100644
--- a/source/uwlab_rl/docs/CHANGELOG.rst
+++ b/source/uwlab_rl/docs/CHANGELOG.rst
@@ -1,6 +1,16 @@
 Changelog
 ---------
 
+0.1.4 (2026-09-14)
+~~~~~~~~~~~~~~~~~~
+
+Fixed
+^^^^^
+
+* Pinned the RSL-RL dependency to commit ``e7cd3c77bdb3c94753612f208c725e1add38a655``
+  so new installations do not pick up incompatible changes from its moving main branch.
+
+
 0.1.3 (2025-11-09)
 ~~~~~~~~~~~~~~~~~~
 
diff --git a/source/uwlab_rl/setup.py b/source/uwlab_rl/setup.py
index 0ab21bd1..34314176 100644
--- a/source/uwlab_rl/setup.py
+++ b/source/uwlab_rl/setup.py
@@ -27,7 +27,8 @@
 # Extra dependencies for RL agents
 EXTRAS_REQUIRE = {
     "rsl-rl": [
-        "rsl-rl-lib @ git+https://github.com/UW-Lab/rsl_rl.git@main",
+        # Update this pin alongside compatible UWLab changes.
+        "rsl-rl-lib @ git+https://github.com/UW-Lab/rsl_rl.git@e7cd3c77bdb3c94753612f208c725e1add38a655",
     ],
 }