diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aa5e1eea..6b6588e3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.10, 2.12.15]
+        scala: [2.13.10, 2.12.17]
         java: [temurin@8, temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
@@ -124,12 +124,12 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.12.15)
+      - name: Download target directories (2.12.17)
         uses: actions/download-artifact@v2
         with:
-          name: target-${{ matrix.os }}-2.12.15-${{ matrix.java }}
+          name: target-${{ matrix.os }}-2.12.17-${{ matrix.java }}
 
-      - name: Inflate target directories (2.12.15)
+      - name: Inflate target directories (2.12.17)
         run: |
           tar xf targets.tar
           rm targets.tar
diff --git a/.mergify.yml b/.mergify.yml
index f7a2b48b..12ba5dcd 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -3,8 +3,8 @@ queue_rules:
     conditions:
       - status-success=Build and Test (ubuntu-latest, 2.13.10, temurin@8)
       - status-success=Build and Test (ubuntu-latest, 2.13.10, temurin@11)
-      - status-success=Build and Test (ubuntu-latest, 2.12.15, temurin@8)
-      - status-success=Build and Test (ubuntu-latest, 2.12.15, temurin@11)
+      - status-success=Build and Test (ubuntu-latest, 2.12.17, temurin@8)
+      - status-success=Build and Test (ubuntu-latest, 2.12.17, temurin@11)
 
 pull_request_rules:
   - name: assign and label scala-steward's PRs
@@ -27,8 +27,8 @@ pull_request_rules:
       - author=dwolla-oss-scala-steward[bot]
       - status-success=Build and Test (ubuntu-latest, 2.13.10, temurin@8)
       - status-success=Build and Test (ubuntu-latest, 2.13.10, temurin@11)
-      - status-success=Build and Test (ubuntu-latest, 2.12.15, temurin@8)
-      - status-success=Build and Test (ubuntu-latest, 2.12.15, temurin@11)
+      - status-success=Build and Test (ubuntu-latest, 2.12.17, temurin@8)
+      - status-success=Build and Test (ubuntu-latest, 2.12.17, temurin@11)
     actions:
       queue:
         method: squash
diff --git a/build.sbt b/build.sbt
index f1940743..0dd3fce9 100644
--- a/build.sbt
+++ b/build.sbt
@@ -12,7 +12,7 @@ inThisBuild(List(
       url("https://dwolla.com")
     )
   ),
-  crossScalaVersions := Seq("2.13.10", "2.12.15"),
+  crossScalaVersions := Seq("2.13.10", "2.12.17"),
   scalaVersion := crossScalaVersions.value.head,
   startYear := Option(2018),
   resolvers += Resolver.sonatypeRepo("releases"),