diff --git a/hoauth2-demo/hoauth2-demo.cabal b/hoauth2-demo/hoauth2-demo.cabal
index 3e94292..ba2f6f1 100644
--- a/hoauth2-demo/hoauth2-demo.cabal
+++ b/hoauth2-demo/hoauth2-demo.cabal
@@ -64,7 +64,7 @@ executable hoauth2-demo
     , aeson                  >=2.0    && <2.3
     , base                   >=4.11   && <5
     , bytestring             >=0.9    && <0.13
-    , containers             >=0.6    && <0.8
+    , containers             >=0.6    && <0.9
     , data-default           ^>=0.8
     , directory              ^>=1.3
     , hoauth2                >=2.9    && <2.16
diff --git a/hoauth2-providers-tutorial/hoauth2-providers-tutorial.cabal b/hoauth2-providers-tutorial/hoauth2-providers-tutorial.cabal
index e550a1c..bd3e7a9 100644
--- a/hoauth2-providers-tutorial/hoauth2-providers-tutorial.cabal
+++ b/hoauth2-providers-tutorial/hoauth2-providers-tutorial.cabal
@@ -18,7 +18,7 @@ library
   build-depends:
     , base               >=4.11   && <5
     , bytestring         >=0.9    && <0.13
-    , containers         >=0.6    && <0.8
+    , containers         >=0.6    && <0.9
     , hoauth2            >=2.9    && <2.16
     , hoauth2-providers  >=0.3    && <0.10
     , http-conduit       >=2.1    && <2.4
diff --git a/hoauth2-providers/hoauth2-providers.cabal b/hoauth2-providers/hoauth2-providers.cabal
index 300d33a..3a7d8be 100644
--- a/hoauth2-providers/hoauth2-providers.cabal
+++ b/hoauth2-providers/hoauth2-providers.cabal
@@ -62,7 +62,7 @@ library
     , aeson                 >=2.0  && <2.3
     , base                  >=4.11 && <5
     , bytestring            >=0.9  && <0.13
-    , containers            ^>=0.6
+    , containers            >=0.6  && <0.9
     , crypton               >=0.32 && <1.1
     , hoauth2               >=2.9  && <2.16
     , HsOpenSSL             >=0.11 && <0.12
diff --git a/hoauth2-tutorial/hoauth2-tutorial.cabal b/hoauth2-tutorial/hoauth2-tutorial.cabal
index 326e5ba..791f4f6 100644
--- a/hoauth2-tutorial/hoauth2-tutorial.cabal
+++ b/hoauth2-tutorial/hoauth2-tutorial.cabal
@@ -46,4 +46,4 @@ executable hoauth2-tutorial
 executable hoauth2-experiment-tutorial
   import:        common
   main-is:       HOAuth2ExperimentTutorial.hs
-  build-depends: containers >=0.6 && <0.8
+  build-depends: containers >=0.6 && <0.9
diff --git a/hoauth2/hoauth2.cabal b/hoauth2/hoauth2.cabal
index 9259e7a..b4e96d8 100644
--- a/hoauth2/hoauth2.cabal
+++ b/hoauth2/hoauth2.cabal
@@ -75,7 +75,7 @@ library
     , binary                >=0.8    && <0.11
     , binary-instances      >=1.0    && <1.1
     , bytestring            >=0.9    && <0.13
-    , containers            >=0.6    && <0.8
+    , containers            >=0.6    && <0.9
     , crypton               >=0.32   && <1.1
     , data-default          ^>=0.8
     , exceptions            >=0.8.3  && <0.11