diff --git a/setup.py b/setup.py
index 070a703..16c9a93 100644
--- a/setup.py
+++ b/setup.py
@@ -43,18 +43,18 @@ setup(
     install_requires=[
         "Babel==2.6.0",
         "Flask-Babel==1.0.0",
-        "pyxdg",
-        "gevent",
+        "pyxdg==0.26",
+        "gevent==1.4.0",
         "flask-bootstrap",
         "python-mpd2",
-        "wtforms",
-        "Flask-WTF",
+        "wtforms==2.2.1",
+        "Flask-WTF==0.14.2",
         "flask==0.11",
-        "pytimeparse",
+        "pytimeparse==1.1.8",
         "croniter==0.3.29",
         "werkzeug==0.14.1",
         "cachelib==0.1",
-        "tinydb",
+        "tinydb==3.12.2",
     ],
     tests_require=["pytest-timeout==1.0", "py>=1.4.29", "pytest==3.0"],
     python_requires=">=3.5",