You may add a reference to version 2.122.1.0 and set the specific version to true.
Or you may try to change the reference by config file, in 2.0 framework i use this syntax:
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Oracle.DataAccess" publicKeyToken="89b483f429c47342" culture="neutral" />
<bindingRedirect oldVersion="2.111.7.0" newVersion="2.111.7.20"/>
</dependentAssembly>
</assemblyBinding>
</runtime>