diff --git a/README.md b/README.md
index da52126..26dedcf 100644
--- a/README.md
+++ b/README.md
@@ -115,10 +115,8 @@ Calculus is the study of change (differential calculus) and accumulation of quan
 
 Courses | Duration | Effort | Prerequisites
 :-- | :--: | :--: | :--:
-[Calculus 1A: Differentiation](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.1x+2T2019/about) | 13 weeks | 6-10 hours/week | [high school math](FAQ.md#how-can-i-review-the-math-prerequisites)
-[Calculus 1B: Integration](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.2x+3T2019/about) | 13 weeks | 5-10 hours/week | Calculus 1A 
-[Calculus 1C: Coordinate Systems & Infinite Series](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.3x+1T2020/about) | 6 weeks | 5-10 hours/week | Calculus 1B
-[Multivariable Calculus](https://ocw.mit.edu/courses/mathematics/18-02sc-multivariable-calculus-fall-2010/) | 12 weeks | 6 hours/week | Calculus 1C 
+[Single Variable Calculus](https://ocw.mit.edu/courses/18-01sc-single-variable-calculus-fall-2010/) | 15 weeks | 10 hours/week | [high school math](FAQ.md#how-can-i-review-the-math-prerequisites)
+[Multivariable Calculus](https://ocw.mit.edu/courses/mathematics/18-02sc-multivariable-calculus-fall-2010/) | 12 weeks | 6 hours/week | Single Variable Calculus 
 
 ### Introduction to Differential Equations
 Differential equations describe the science of change: the route by which natural and man-made systems move from one state to another. Epidemics, population growth, and weather patterns are all modeled using differential equations. It provides us a mathematical language to describe physical, chemical, and biological systems and their evolution.