1.11 crash with custom fishing rod.

We overwrote the custom minecraft fishing rod a while ago.

Now in 1.11 it crashes on the following line:

fishingSpeedEnchantment = EnchantmentHelper.getLureModifier(citizen);

java.lang.NoSuchMethodError: net.minecraft.enchantment.EnchantmentHelper.func_151387_h(Lnet/minecraft/entity/EntityLivingBase;)I
    at com.minecolonies.coremod.entity.EntityFishHook.<init>(EntityFishHook.java:167)
    at com.minecolonies.coremod.entity.ai.citizen.fisherman.EntityAIWorkFisherman.throwRod(EntityAIWorkFisherman.java:527)
    at com.minecolonies.coremod.entity.ai.citizen.fisherman.EntityAIWorkFisherman.throwOrRetrieveHook(EntityAIWorkFisherman.java:499)
    at com.minecolonies.coremod.entity.ai.citizen.fisherman.EntityAIWorkFisherman.doFishing(EntityAIWorkFisherman.java:469)
    at com.minecolonies.coremod.entity.ai.citizen.fisherman.EntityAIWorkFisherman$$Lambda$268/904848120.get(Unknown Source)
    at com.minecolonies.coremod.entity.ai.util.AITarget.apply(AITarget.java:125)
    at com.minecolonies.coremod.entity.ai.basic.AbstractAISkeleton.applyTarget(AbstractAISkeleton.java:203)
    at com.minecolonies.coremod.entity.ai.basic.AbstractAISkeleton.checkOnTarget(AbstractAISkeleton.java:176)
    at com.minecolonies.coremod.entity.ai.basic.AbstractAISkeleton$$Lambda$222/807538661.test(Unknown Source)
    at java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90)
    at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1351)
    at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
    at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:529)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:516)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
    at java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230)
    at java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:449)
    at com.minecolonies.coremod.entity.ai.basic.AbstractAISkeleton.func_75246_d(AbstractAISkeleton.java:129)
    at net.minecraft.entity.ai.EntityAITasks.func_75774_a(SourceFile:129)
    at net.minecraft.entity.EntityLiving.func_70626_be(EntityLiving.java:769)
    at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:2255)
    at net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:573)
    at net.minecraft.entity.EntityAgeable.func_70636_d(EntityAgeable.java:171)
    at com.minecolonies.coremod.entity.EntityCitizen.func_70636_d(EntityCitizen.java:808)
    at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2085)
    at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:296)
    at net.minecraft.world.World.func_72866_a(World.java:1961)
    at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:840)
    at net.minecraft.world.World.func_72870_g(World.java:1931)
    at net.minecraft.world.World.func_72939_s(World.java:1747)
    at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:621)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:720)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:149)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
    at java.lang.Thread.run(Thread.java:745)

Can't explain what the problem is.