diff --git a/.travis.yml b/.travis.yml
index 8daa38c..116705f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,8 @@ node_js: stable
 env:
   - PATH=$HOME/purescript:$PATH
 install:
-  - TAG=$(basename $(curl --location --silent --output /dev/null -w %{url_effective} https://github.com/purescript/purescript/releases/latest))
+  # - TAG=$(basename $(curl --location --silent --output /dev/null -w %{url_effective} https://github.com/purescript/purescript/releases/latest))
+  - TAG=v0.14.0-rc3
   - curl --location --output $HOME/purescript.tar.gz https://github.com/purescript/purescript/releases/download/$TAG/linux64.tar.gz
   - tar -xvf $HOME/purescript.tar.gz -C $HOME/
   - chmod a+x $HOME/purescript
diff --git a/bower.json b/bower.json
index ec7fb7f..e401464 100644
--- a/bower.json
+++ b/bower.json
@@ -16,26 +16,26 @@
     "package.json"
   ],
   "dependencies": {
-    "purescript-arrays": "^5.0.0",
-    "purescript-control": "^4.0.0",
-    "purescript-either": "^4.0.0",
-    "purescript-enums": "^4.0.0",
-    "purescript-foldable-traversable": "^4.0.0",
-    "purescript-gen": "^2.0.0",
-    "purescript-integers": "^4.0.0",
-    "purescript-maybe": "^4.0.0",
-    "purescript-newtype": "^3.0.0",
-    "purescript-nonempty": "^5.0.0",
-    "purescript-partial": "^2.0.0",
-    "purescript-prelude": "^4.0.0",
-    "purescript-tailrec": "^4.0.0",
-    "purescript-tuples": "^5.0.0",
-    "purescript-unfoldable": "^4.0.0",
-    "purescript-unsafe-coerce": "^4.0.0"
+    "purescript-arrays": "master",
+    "purescript-control": "master",
+    "purescript-either": "master",
+    "purescript-enums": "master",
+    "purescript-foldable-traversable": "master",
+    "purescript-gen": "master",
+    "purescript-integers": "master",
+    "purescript-maybe": "master",
+    "purescript-newtype": "master",
+    "purescript-nonempty": "master",
+    "purescript-partial": "master",
+    "purescript-prelude": "master",
+    "purescript-tailrec": "master",
+    "purescript-tuples": "master",
+    "purescript-unfoldable": "master",
+    "purescript-unsafe-coerce": "master"
   },
   "devDependencies": {
-    "purescript-assert": "^4.0.0",
-    "purescript-console": "^4.0.0",
-    "purescript-minibench": "^2.0.0"
+    "purescript-assert": "master",
+    "purescript-console": "master",
+    "purescript-minibench": "master"
   }
 }
diff --git a/package.json b/package.json
index e868f88..1f09388 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "devDependencies": {
     "eslint": "^4.19.1",
     "pulp": "^15.0.0",
-    "purescript-psa": "^0.6.0",
+    "purescript-psa": "^0.8.0",
     "rimraf": "^2.6.2"
   }
 }
diff --git a/src/Data/String/Regex/Unsafe.purs b/src/Data/String/Regex/Unsafe.purs
index 0a982c6..3cbd0ae 100644
--- a/src/Data/String/Regex/Unsafe.purs
+++ b/src/Data/String/Regex/Unsafe.purs
@@ -2,13 +2,14 @@ module Data.String.Regex.Unsafe
 ( unsafeRegex
 ) where
 
-import Data.Either (fromRight)
+import Control.Category (identity)
+import Data.Either (either)
 import Data.String.Regex (Regex, regex)
 import Data.String.Regex.Flags (RegexFlags)
 
-import Partial.Unsafe (unsafePartial)
+import Partial.Unsafe (unsafeCrashWith)
 
 -- | Constructs a `Regex` from a pattern string and flags. Fails with
 -- | an exception if the pattern contains a syntax error.
 unsafeRegex :: String -> RegexFlags -> Regex
-unsafeRegex s f = unsafePartial fromRight (regex s f)
+unsafeRegex s f = either unsafeCrashWith identity (regex s f)