This thesis examines ecotheology in liturgy. In light of an increasing awareness of the seriousness of the climate crisis and the consequences for all living beings on earth, it investigated whether and how communion prayers in handbooks of Church of Sweden from 1986 and 2017 have changed towards becoming more ecotheological. The focus of this study has been how God is described in the use of God's names and metaphors, God's relationship to the world, and God's mission to people. These were analyzed using a qualitative content analysis. Two metaphorical models, a monarchical model and a God-body model, taken from ecofeminist theologian Sallie McFague were used as the study's ecotheological approach. Through the analysis, it has been shown that the communion prayers have become more ecotheological. The prayers have more often features the metaphor of "creator" for God and descriptions of an actively creating, loving, and present God. God's relationship with the world now also includes the entire universe that God carries and fulfills. God meets people more often through the risen Christ and God's incarnation and salvation can also be interpreted as concerning of all creation. God's mission to human beings is more directed outward to the world, but there are still no explicit missions towards other living beings or all of creation.