diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4d577a5d..ac21c103 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.7, 2.12.15, 3.1.0]
+        scala: [2.13.15, 2.12.15, 3.1.0]
         java: [openjdk@1.11.0]
     runs-on: ${{ matrix.os }}
     steps:
@@ -66,7 +66,7 @@ jobs:
         run: sbt ++${{ matrix.scala }} ci
 
       - name: Run unidoc
-        if: matrix.scala == '2.13.7'
+        if: matrix.scala == '2.13.15'
         run: sbt ++${{ matrix.scala }} unidoc
 
       - name: Compile Docs
@@ -88,7 +88,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.7]
+        scala: [2.13.15]
         java: [openjdk@1.11.0]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index 3a8667ff..0625e615 100644
--- a/build.sbt
+++ b/build.sbt
@@ -176,7 +176,7 @@ lazy val mavenSettings = Seq(
 )
 
 val Scala30  = "3.1.0"
-val Scala213 = "2.13.7"
+val Scala213 = "2.13.15"
 val Scala212 = "2.12.15"
 val Jdk11    = "openjdk@1.11.0"