diff --git a/lib/Servant/Ekg.hs b/lib/Servant/Ekg.hs
index 5676aa5..c50c360 100644
--- a/lib/Servant/Ekg.hs
+++ b/lib/Servant/Ekg.hs
@@ -117,9 +117,11 @@ instance HasEndpoint (sub :: *) => HasEndpoint (Header' mods h a :> sub) where
     getEndpoint        _ = getEndpoint        (Proxy :: Proxy sub)
     enumerateEndpoints _ = enumerateEndpoints (Proxy :: Proxy sub)
 
+#if MIN_VERSION_servant(0,18,2)
 instance HasEndpoint (sub :: *) => HasEndpoint (Fragment a :> sub) where
     getEndpoint        _ = getEndpoint        (Proxy :: Proxy sub)
     enumerateEndpoints _ = enumerateEndpoints (Proxy :: Proxy sub)
+#endif
 
 instance HasEndpoint (sub :: *) => HasEndpoint (QueryParam' mods (h :: Symbol) a :> sub) where
     getEndpoint        _ = getEndpoint        (Proxy :: Proxy sub)
@@ -183,6 +185,17 @@ instance ReflectMethod method => HasEndpoint (NoContentVerb method) where
       where method = reflectMethod (Proxy :: Proxy method)
 #endif
 
+#if MIN_VERSION_servant(0,18,1)
+instance ReflectMethod method => HasEndpoint (UVerb method contentType as) where
+    getEndpoint _ req = case pathInfo req of
+        [] | requestMethod req == method -> Just (APIEndpoint [] method)
+        _                                -> Nothing
+      where method = reflectMethod (Proxy :: Proxy method)
+
+    enumerateEndpoints _ = [APIEndpoint mempty method]
+      where method = reflectMethod (Proxy :: Proxy method)
+#endif
+
 instance ReflectMethod method => HasEndpoint (Stream method status framing ct a) where
     getEndpoint _ req = case pathInfo req of
         [] | requestMethod req == method -> Just (APIEndpoint [] method)
diff --git a/servant-ekg.cabal b/servant-ekg.cabal
index 5226cfc..5317167 100644
--- a/servant-ekg.cabal
+++ b/servant-ekg.cabal
@@ -25,15 +25,15 @@ library
   other-modules:    Servant.Ekg.Internal
   hs-source-dirs:   lib
   build-depends:
-      base                  >=4.9      && <4.15
-    , ekg-core              >=0.1.1.4  && <0.2
-    , http-types            >=0.12.2   && <0.13
-    , hashable              >=1.2.7.0  && <1.4
-    , servant               >=0.14     && <0.20
-    , text                  >=1.2.3.0  && <1.3
-    , time                  >=1.6.0.1  && <1.12
-    , unordered-containers  >=0.2.9.0  && <0.3
-    , wai                   >=3.2.0    && <3.3
+      base                  >=4.9     && <4.16
+    , ekg-core              >=0.1.1.4 && <0.2
+    , http-types            >=0.12.2  && <0.13
+    , hashable              >=1.2.7.0 && <1.4
+    , servant               >=0.14    && <0.20
+    , text                  >=1.2.3.0 && <1.3
+    , time                  >=1.6.0.1 && <1.12
+    , unordered-containers  >=0.2.9.0 && <0.3
+    , wai                   >=3.2.0   && <3.3
 
   default-language: Haskell2010