diff --git a/setup.py b/setup.py
index 2fb1cf19..f4350c04 100644
--- a/setup.py
+++ b/setup.py
@@ -77,6 +77,10 @@ requires = [
     # TODO: Pyramid 1.9 looks like it breaks us..? playing it safe for now..
     'pyramid<1.9',                      # 1.3b2                 1.8.3
 
+    # apparently 2.0 removes the retry support, in which case we then need
+    # pyramid_retry .. but that requires pyramid 1.9 ...
+    'pyramid_tm<2.0',                   # 0.3                   1.1.1
+
     'humanize',                         # 0.5.1
     'Mako',                             # 0.6.2
     'pyramid_beaker>=0.6',              #                       0.6.1
@@ -84,7 +88,6 @@ requires = [
     'pyramid_exclog',                   # 0.6
     'pyramid_mako',                     # 1.0.2
     'pyramid_simpleform',               # 0.6.1
-    'pyramid_tm',                       # 0.3
     'rattail[db,auth,bouncer]',         # 0.5.0
     'six',                              # 1.10.0
     'transaction',                      # 1.2.0