diff --git a/setup.cfg b/setup.cfg
index 7229a5e..8b43162 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -6,9 +6,10 @@ package_dir =
 zip_safe = True
 
 install_requires =
-    biocommons.seqrepo>=0.6.2
+    biocommons.seqrepo~=0.6
     coloredlogs
-    connexion[swagger-ui]>=2.2
+    connexion[swagger-ui]~=2.2
+    Flask~=2.2
 
 [options.extras_require]
 dev =