@@ -153,7 +153,8 @@ library
153153
154154 if flag(debug-trace-events)
155155 cpp-options: -DDEBUG_TRACE_EVENTS
156− build-depends: bytestring
156+ build-depends:
157+ bytestring >= 0.10.8 && < 0.11
157158
158159 if flag(use-reflex-optimizer)
159160 cpp-options: -DUSE_REFLEX_OPTIMIZER
@@ -184,7 +185,8 @@ library
184185 cpp-options: -DGHCJS_FAST_WEAK
185186
186187 if impl(ghcjs)
187− build-depends: ghcjs-base
188+ build-depends:
189+ ghcjs-base == 0.2.*
188190
189191test-suite semantics
190192 default-language: Haskell2010