diff --git a/build-constraints.yaml b/build-constraints.yaml
index c05434d1..e46f2fa2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -63,8 +63,6 @@ packages:
         - buttplug-hs-core
 
     "Manuel Schneckenreither <manuel.schnecki@gmail.com> @schnecki":
-        - experimenter < 0 # 0.1.0.14 https://github.com/schnecki/experimenter/issues/1
-        - api-maker < 0 # 0.1.0.6 https://github.com/schnecki/api-maker/issues/1
         - easy-logger
         - welford-online-mean-variance
 
@@ -72,7 +70,6 @@ packages:
         - error-or
         - error-or-utils
         - inbox
-        - mock-time < 0 # 0.1.0 compile fail https://github.com/luntain/error-or-bundle/issues/4
 
     "Liang-Ting Chen<liang.ting.chen.tw@gmail.com> @L-TChen":
         - geniplate-mirror