diff --git a/.azure/azure-linux-template.yml b/.azure/azure-linux-template.yml
index b15dce2..d74dd42 100644
--- a/.azure/azure-linux-template.yml
+++ b/.azure/azure-linux-template.yml
@@ -98,7 +98,7 @@ jobs:
           done
           ;;
         *)
-          stack $ARGS test
+          stack $ARGS test --pedantic
           ;;
       esac
       set +ex
diff --git a/.azure/azure-osx-template.yml b/.azure/azure-osx-template.yml
index 236ed42..5b40083 100644
--- a/.azure/azure-osx-template.yml
+++ b/.azure/azure-osx-template.yml
@@ -34,7 +34,7 @@ jobs:
       curl -skL https://get.haskellstack.org/stable/osx-x86_64.tar.gz | tar xz --strip-components=1 --include '*/stack' -C ~/.local/bin;
       export PATH=$HOME/.local/bin:$PATH
       stack --install-ghc $ARGS test --only-dependencies
-      stack $ARGS test
+      stack $ARGS test --pedantic
     env:
       OS_NAME: ${{ parameters.os }}
     displayName: 'Installation ${{parameters.os}} & Test'
diff --git a/.azure/azure-windows-template.yml b/.azure/azure-windows-template.yml
index c803f9d..a5fa825 100644
--- a/.azure/azure-windows-template.yml
+++ b/.azure/azure-windows-template.yml
@@ -33,7 +33,7 @@ jobs:
       curl -sSkL http://www.stackage.org/stack/windows-x86_64 -o /usr/bin/stack.zip
       unzip -o /usr/bin/stack.zip -d /usr/bin/
       stack --install-ghc $ARGS test --only-dependencies
-      stack $ARGS test
+      stack $ARGS test --pedantic
     env:
       OS_NAME: ${{ parameters.os }}
     displayName: 'Installation ${{parameters.os}} & Test'
diff --git a/test/UnitTests.hs b/test/UnitTests.hs
index 0133195..d22fc05 100644
--- a/test/UnitTests.hs
+++ b/test/UnitTests.hs
@@ -4,9 +4,7 @@ module UnitTests
   , compileVideoFolder
   ) where
 
-import           Control.Monad        (forM)
 import qualified Data.ByteString.Lazy as LBS
-import           Data.Maybe           (catMaybes)
 import           Reanimate.Misc       (withTempDir, withTempFile)
 import           System.Directory
 import           System.Exit
@@ -38,7 +36,7 @@ genGolden path = withTempDir $ \tmpDir -> withTempFile ".exe" $ \tmpExecutable -
   -- ret <- runCmd_ "stack" $ ["ghc", "--"] ++ ghcOptions tmpDir ++ [self, "-o", tmpExecutable]
   -- ["-rtsopts", "--make", "-threaded", "-O2"] ++
   -- ["-odir", tmpDir, "-hidir", tmpDir]
-  (inh, outh, errh, pid) <- runInteractiveProcess tmpExecutable (["test"] ++ runOpts)
+  (inh, outh, errh, _pid) <- runInteractiveProcess tmpExecutable (["test"] ++ runOpts)
     Nothing Nothing
   hClose inh
   hClose errh