diff --git a/pyproject.toml b/pyproject.toml
index ca115350..fa434238 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ dependencies = [
   "anthropic==0.59.0",
   "beautifulsoup4==4.14.2",
   "pywebview",
-  "pystray>=0.19.5",
+  "pystray==0.19.5",
   # Transitive deps pinned for security (dependabot alerts).
   # Exact pins because uvx installs from git, ignoring the lock file.
   "urllib3==2.6.3",
diff --git a/uv.lock b/uv.lock
index d7684133..e4ec874a 100644
--- a/uv.lock
+++ b/uv.lock
@@ -3009,7 +3009,7 @@ requires-dist = [
     { name = "pyinstrument", marker = "extra == 'dev'", specifier = "==5.1.1" },
     { name = "pyjwt", marker = "extra == 'dev'", specifier = "==2.10.1" },
     { name = "pyright", specifier = "==1.1.403" },
-    { name = "pystray", specifier = ">=0.19.5" },
+    { name = "pystray", specifier = "==0.19.5" },
     { name = "pytest", marker = "extra == 'dev'", specifier = "==8.4.1" },
     { name = "pytest-timeout", marker = "extra == 'dev'", specifier = "==2.4.0" },
     { name = "pytest-xdist", marker = "extra == 'dev'", specifier = "==3.8.0" },